CN112152896A - ECN integrated circuit board - Google Patents
ECN integrated circuit board Download PDFInfo
- Publication number
- CN112152896A CN112152896A CN202010846460.1A CN202010846460A CN112152896A CN 112152896 A CN112152896 A CN 112152896A CN 202010846460 A CN202010846460 A CN 202010846460A CN 112152896 A CN112152896 A CN 112152896A
- Authority
- CN
- China
- Prior art keywords
- data
- trdp
- ecn
- module
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/20—Network architectures or network communication protocols for network security for managing network security; network security policies in general
Abstract
The invention discloses an ECN board card module ECN-PC104 with real-time communication and hardware layer safety protection functions based on PC104 bus specification, which is used for forming an Ethernet train component network (ECN) and realizing communication among all control nodes in the network, and the module is a three-port PC/104 train Ethernet module, wherein two ports are redundant, the third port is used for monitoring, and the product is used for real-time data transmission of the Ethernet of the train. Compared with the traditional ECN module, the ECN-PC104 module supports a TRDP protocol, has a strict message scheduling period and supports the ECN vehicle-mounted network safety communication. The method can be applied to the train control field such as high-speed rails, subways and trains and the related matching field, and provides accurate, safe and reliable network communication functions for various systems and modules.
Description
Technical Field
The invention relates to the technical field of real-time network communication, in particular to an ECN board card.
Background
In the field of rail transit, the standard of the ethernet communication network (ethernet connectivity network ECN) in the Train communication network (Train communication network tcn) is specified in IEC 61375-3-4-2014. The main reason for establishing the standard is that the data volume of the current train communication is increased sharply, and the traditional train bus cannot meet the requirement of large data volume transmission, so the Ethernet communication is adopted, and the high bandwidth can meet the requirement of large data transmission. Such as an in-vehicle broadcast system, a video system, downloading firmware programs, etc. The verification of the ECN is currently carried out on domestic high-speed rails/subways.
Disclosure of Invention
Compared with the traditional ECN module, the ECN-PC104 module disclosed by the invention supports a TRDP protocol, has a strict message scheduling period, supports the safe communication of an ECN vehicle-mounted network, can be applied to the control field of trains such as high-speed rails, subways and trains and related supporting fields, and provides an accurate, safe and reliable network communication function for each system and module.
In order to achieve the purpose, the invention provides the following technical scheme:
an ECN board card comprises a network interface module communicated with external equipment, a network security module communicated with the network interface module through an MAC interface, a real-time processing module communicated with the network security module, a data processing module communicated with the real-time processing module, a storage module communicated with the data processing module, and a PC104 bus interface module communicated with the data processing module;
the network interface module is used for converting an Ethernet physical signal received from the external equipment into a corresponding network level signal and sending the corresponding network level signal to the network security module through the MAC interface, the network security module transmits the security data to the real-time processing module, and the real-time processing module distributes the security data to the other two paths of real-time processing modules and the data processing module in real time;
the data processing module is used for receiving the MAC data packet corresponding to the network level signal, calling a TRDP protocol stack, analyzing the MAC data packet into a TRDP frame, analyzing the TRDP frame into data which can be identified by an upper computer, and sending the data to the upper computer through a PC-104 bus; or, receiving data from the upper computer, packaging the data into a TRDP frame, combining the TRDP frame into the MAC data packet, and sending the MAC data packet to a network security module through the real-time processing module, where the network security module sends the data to an MAC interface to send the MAC data packet after verifying data security;
the storage module is used for storing the TRDP protocol stack.
Preferably, the data processing module includes a data exchange unit, a core processing unit in communication with the data exchange unit, and a cache unit in communication with the core processing unit;
the data exchange unit is used for realizing a network data exchange function;
the buffer unit is used for buffering the TRDP frame under the control of the core processing unit;
the core processing unit is used for receiving an MAC data packet corresponding to the network level signal, calling the TRDP protocol stack, analyzing the MAC data packet into a TRDP frame, analyzing the TRDP frame into data capable of being identified by an upper computer and sending the data to the upper computer; or, receiving data from the upper computer, packaging the data into the TRDP frame, combining the TRDP frame into the MAC packet, and sending the MAC packet through the MAC interface.
Preferably, the core processing unit comprises a programmable control logic connected with a PC-104 bus through a PC-104 interface and a processor communicated with the programmable control logic through an internal high-speed bus, and the PC-104 bus is connected with the upper computer;
the programmable control logic is used for receiving the MAC data packet, removing a control information part and a safety information part of the MAC data packet to obtain a data part, and sending the data part to the processor; receiving the TRDP frame sent by the processor, analyzing the TRDP frame into data, and sending the data to the upper computer through the PC-104 interface; or, receiving the data and sending the data to the processor;
receiving TRDP frames sent by the processor, combining the TRDP frames into the MAC data packet, adding network security information and real-time distribution information through the real-time processing module and the network security module, and sending the MAC data packet through the MAC interface; the processor is also communicated with the cache unit and is used for calling the TRDP protocol stack, analyzing the data part into the TRDP frame, caching the TRDP frame into the cache unit, reading the TRDP frame from the cache unit and sending the TRDP frame to the programmable control logic; or calling the TRDP protocol stack, combining the data into the TRDP frame, caching the TRDP frame to the cache unit, reading the TRDP frame from the cache unit, and sending the TRDP frame to the programmable control logic.
Preferably, the ECN card further comprises a power supply module, wherein the power supply module is used for obtaining the back plate voltage from a back plate power supply of the upper computer and supplying power to the ECN card.
Preferably, the power supply module includes a power conversion unit, configured to convert the backplane voltage into power supply voltages required by the data processing module and the storage module, respectively.
Preferably, the system further comprises a monitoring interface for monitoring communication between the ECN board card and the upper computer.
Preferably, the system further comprises a communication status indicator lamp for indicating the external device to communicate with the ECN board and a status indicator lamp of the monitoring interface.
Preferably, the system further comprises an ethernet interface for realizing the connection between the external device and the ECN board.
Compared with the prior art, the invention has the beneficial effects that: the invention provides an ECN board card module ECN-PC104 with real-time communication and hardware layer safety protection functions based on PC104 bus specification, which is used for forming an Ethernet train component network (ECN) and realizing communication among all control nodes in the network, and the module is a three-port PC/104 train Ethernet module, wherein two ports are redundant, the third port is used for monitoring, and the product is used for real-time data transmission of the Ethernet of the train. Compared with the traditional ECN module, the ECN-PC104 module supports a TRDP protocol, has a strict message scheduling period and supports the ECN vehicle-mounted network safety communication. The method can be applied to the train control field such as high-speed rails, subways and trains and the related matching field, and provides accurate, safe and reliable network communication functions for various systems and modules.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a technical solution provided by the present invention is: an ECN board card comprises a network interface module communicated with external equipment, a network security module communicated with the network interface module through an MAC interface, a real-time processing module communicated with the network security module, a data processing module communicated with the real-time processing module, a storage module communicated with the data processing module, and a PC104 bus interface module communicated with the data processing module; the network interface module is used for converting an Ethernet physical signal received from the external equipment into a corresponding network level signal and sending the corresponding network level signal to the network security module through the MAC interface, the network security module transmits the security data to the real-time processing module, and the real-time processing module distributes the security data to the other two paths of real-time processing modules and the data processing module in real time; the data processing module is used for receiving the MAC data packet corresponding to the network level signal, calling a TRDP protocol stack, analyzing the MAC data packet into a TRDP frame, analyzing the TRDP frame into data which can be identified by an upper computer, and sending the data to the upper computer through a PC-104 bus; or, receiving data from the upper computer, packaging the data into a TRDP frame, combining the TRDP frame into the MAC data packet, and sending the MAC data packet to a network security module through the real-time processing module, where the network security module sends the data to an MAC interface to send the MAC data packet after verifying data security; the storage module is used for storing the TRDP protocol stack.
The data processing module comprises a data exchange unit, a core processing unit communicated with the data exchange unit and a cache unit communicated with the core processing unit; the data exchange unit is used for realizing a network data exchange function; the buffer unit is used for buffering the TRDP frame under the control of the core processing unit; the core processing unit is used for receiving an MAC data packet corresponding to the network level signal, calling the TRDP protocol stack, analyzing the MAC data packet into a TRDP frame, analyzing the TRDP frame into data capable of being identified by an upper computer and sending the data to the upper computer; or, receiving data from the upper computer, packaging the data into the TRDP frame, combining the TRDP frame into the MAC packet, and sending the MAC packet through the MAC interface.
The core processing unit comprises a programmable control logic connected with a PC-104 bus through a PC-104 interface and a processor communicated with the programmable control logic through an internal high-speed bus, and the PC-104 bus is connected with the upper computer; the programmable control logic is used for receiving the MAC data packet, removing a control information part and a safety information part of the MAC data packet to obtain a data part, and sending the data part to the processor; receiving the TRDP frame sent by the processor, analyzing the TRDP frame into data, and sending the data to the upper computer through the PC-104 interface; or, receiving the data and sending the data to the processor; receiving TRDP frames sent by the processor, combining the TRDP frames into the MAC data packet, adding network security information and real-time distribution information through the real-time processing module and the network security module, and sending the MAC data packet through the MAC interface; the processor is also communicated with the cache unit and is used for calling the TRDP protocol stack, analyzing the data part into the TRDP frame, caching the TRDP frame into the cache unit, reading the TRDP frame from the cache unit and sending the TRDP frame to the programmable control logic; or calling the TRDP protocol stack, combining the data into the TRDP frame, caching the TRDP frame to the cache unit, reading the TRDP frame from the cache unit, and sending the TRDP frame to the programmable control logic.
The ECN board card power supply system comprises an ECN board card, a data processing module and a storage module, and is characterized by further comprising a power supply module, wherein the power supply module is used for obtaining back board voltage from a back board power supply of the upper computer and supplying power to the ECN board card, and the power supply module comprises a power supply conversion unit, and is used for converting the back board voltage into power supply voltage required by the data processing module and the storage module respectively.
The ECN board card communication monitoring system further comprises a monitoring interface used for monitoring communication between the ECN board card and the upper computer.
The ECN board card monitoring system further comprises a communication status indicator lamp used for indicating the external equipment to communicate with the ECN board card and a status indicator lamp of the monitoring interface.
The system also comprises an Ethernet interface which is used for realizing the connection between the external equipment and the ECN board card.
Finally, the ECN board card module ECN-PC104 with real-time communication and hardware layer safety protection functions based on the PC104 bus specification, provided by the invention, is used for forming an Ethernet train component network (ECN) and realizing communication among all control nodes in the network, and the module is a three-port PC/104 train Ethernet module, wherein two ports are redundant, the third port is used for monitoring, and the product is used for real-time data transmission of the Ethernet of the train. Compared with the traditional ECN module, the ECN-PC104 module supports a TRDP protocol, has a strict message scheduling period and supports the ECN vehicle-mounted network safety communication. The method can be applied to the train control field such as high-speed rails, subways and trains and the related matching field, and provides accurate, safe and reliable network communication functions for various systems and modules.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. An ECN integrated circuit board, which is characterized in that: the system comprises a network interface module communicated with external equipment, a network security module communicated with the network interface module through an MAC interface, a real-time processing module communicated with the network security module, a data processing module communicated with the real-time processing module, a storage module communicated with the data processing module, and a PC104 bus interface module communicated with the data processing module;
the network interface module is used for converting an Ethernet physical signal received from the external equipment into a corresponding network level signal and sending the corresponding network level signal to the network security module through the MAC interface, the network security module transmits the security data to the real-time processing module, and the real-time processing module distributes the security data to the other two paths of real-time processing modules and the data processing module in real time;
the data processing module is used for receiving the MAC data packet corresponding to the network level signal, calling a TRDP protocol stack, analyzing the MAC data packet into a TRDP frame, analyzing the TRDP frame into data which can be identified by an upper computer, and sending the data to the upper computer through a PC-104 bus; or, receiving data from the upper computer, packaging the data into a TRDP frame, combining the TRDP frame into the MAC data packet, and sending the MAC data packet to a network security module through the real-time processing module, where the network security module sends the data to an MAC interface to send the MAC data packet after verifying data security;
the storage module is used for storing the TRDP protocol stack.
2. The ECN board of claim 1, wherein: the data processing module comprises a data exchange unit, a core processing unit communicated with the data exchange unit and a cache unit communicated with the core processing unit;
the data exchange unit is used for realizing a network data exchange function;
the buffer unit is used for buffering the TRDP frame under the control of the core processing unit;
the core processing unit is used for receiving an MAC data packet corresponding to the network level signal, calling the TRDP protocol stack, analyzing the MAC data packet into a TRDP frame, analyzing the TRDP frame into data capable of being identified by an upper computer and sending the data to the upper computer; or, receiving data from the upper computer, packaging the data into the TRDP frame, combining the TRDP frame into the MAC packet, and sending the MAC packet through the MAC interface.
3. The ECN board of claim 2, wherein: the core processing unit comprises a programmable control logic connected with a PC-104 bus through a PC-104 interface and a processor communicated with the programmable control logic through an internal high-speed bus, and the PC-104 bus is connected with the upper computer;
the programmable control logic is used for receiving the MAC data packet, removing a control information part and a safety information part of the MAC data packet to obtain a data part, and sending the data part to the processor; receiving the TRDP frame sent by the processor, analyzing the TRDP frame into data, and sending the data to the upper computer through the PC-104 interface; or, receiving the data and sending the data to the processor;
receiving TRDP frames sent by the processor, combining the TRDP frames into the MAC data packet, adding network security information and real-time distribution information through the real-time processing module and the network security module, and sending the MAC data packet through the MAC interface; the processor is also communicated with the cache unit and is used for calling the TRDP protocol stack, analyzing the data part into the TRDP frame, caching the TRDP frame into the cache unit, reading the TRDP frame from the cache unit and sending the TRDP frame to the programmable control logic; or calling the TRDP protocol stack, combining the data into the TRDP frame, caching the TRDP frame to the cache unit, reading the TRDP frame from the cache unit, and sending the TRDP frame to the programmable control logic.
4. The ECN board of claim 1, wherein: the power supply module is used for obtaining the back plate voltage from a back plate power supply of the upper computer and supplying power to the ECN board card.
5. The ECN board of claim 4, wherein: the power supply module comprises a power supply conversion unit which is used for converting the voltage of the backboard into power supply voltages required by the data processing module and the storage module respectively.
6. The ECN board of claim 1, wherein: the ECN board card communication monitoring system further comprises a monitoring interface used for monitoring communication between the ECN board card and the upper computer.
7. The ECN board of claim 6, wherein: the ECN board card monitoring system further comprises a communication status indicator lamp used for indicating the external equipment to communicate with the ECN board card and a status indicator lamp of the monitoring interface.
8. The ECN board of claim 1, wherein: the system also comprises an Ethernet interface which is used for realizing the connection between the external equipment and the ECN board card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010846460.1A CN112152896A (en) | 2020-08-21 | 2020-08-21 | ECN integrated circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010846460.1A CN112152896A (en) | 2020-08-21 | 2020-08-21 | ECN integrated circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112152896A true CN112152896A (en) | 2020-12-29 |
Family
ID=73887907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010846460.1A Pending CN112152896A (en) | 2020-08-21 | 2020-08-21 | ECN integrated circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112152896A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150237156A1 (en) * | 2012-10-11 | 2015-08-20 | Institute Of Software, Chinese Academy Of Sciences | Lpc2468-based mvb-wtb gateway and working method thereof |
| CN107230263A (en) * | 2017-05-31 | 2017-10-03 | 中车信息技术有限公司 | A kind of WTB bus datas frame recording instrument and recording method |
| CN108521416A (en) * | 2018-03-30 | 2018-09-11 | 上海仁童电子科技有限公司 | A kind of ECN boards |
-
2020
- 2020-08-21 CN CN202010846460.1A patent/CN112152896A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150237156A1 (en) * | 2012-10-11 | 2015-08-20 | Institute Of Software, Chinese Academy Of Sciences | Lpc2468-based mvb-wtb gateway and working method thereof |
| CN107230263A (en) * | 2017-05-31 | 2017-10-03 | 中车信息技术有限公司 | A kind of WTB bus datas frame recording instrument and recording method |
| CN108521416A (en) * | 2018-03-30 | 2018-09-11 | 上海仁童电子科技有限公司 | A kind of ECN boards |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106776436B (en) | A kind of communication means of the high-speed serial bus suitable for multiple spot interconnection | |
| CN110299999B (en) | Train real-time Ethernet TRDP network card based on Linux platform | |
| CN102514576B (en) | On-board intelligent equipment of high-speed train | |
| CN102437550B (en) | Microcomputer relay protection device based on serial bus technology | |
| CN105573239A (en) | High speed backboard bus communication control device and method | |
| CN101123592A (en) | MVB-CAN gateway based on ARM7 micro processor | |
| CN104796356B (en) | Vehicle-mounted Ethernet switch and signal transmitting and receiving and train weight linked method used for rail vehicle | |
| CN205666856U (en) | Train level ethernet switching equipment and system | |
| CN109835369A (en) | A kind of the on-vehicle safety maintenance communications platform and its implementation of the train protection warning function based on LTE-R network | |
| CN101707629B (en) | Synchronous communication method of mirror images for self organization information of safety and stability control device of electric network | |
| CN102724164A (en) | Multi-communication protocol transmission apparatus of electric power control system and method thereof | |
| CN203708279U (en) | Special-purpose management type industrial Ethernet switch device for rail traffic | |
| CN112436601A (en) | Information flow processing method of intelligent substation, computer equipment and storage medium | |
| CN102098196A (en) | Data transmission method of blade server | |
| CN112152896A (en) | ECN integrated circuit board | |
| CN102638306A (en) | 1394b optical bus monitor and monitoring method thereof | |
| CN207200769U (en) | A kind of data acquisition device | |
| CN107623597B (en) | Miniaturized POTN equipment and remote power failure prompting method | |
| CN209514377U (en) | A kind of multifunctional vehicle bus module | |
| CN210822295U (en) | Vehicle-mounted safety maintenance communication platform based on LTE-R network | |
| CN108216300A (en) | A kind of vehicle integrated information harvester and its method | |
| CN106953778A (en) | A kind of long-distance management system | |
| CN206743287U (en) | A kind of channel control panel | |
| CN107276845B (en) | A kind of real time data dispatching method with fault tolerance of field of track traffic | |
| CN102118305A (en) | Service board of communication equipment and communication equipment employing same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20201229 |
|
| WD01 | Invention patent application deemed withdrawn after publication |