CN112787857A - Data monitoring and fault positioning method for remote data concentrator - Google Patents
Data monitoring and fault positioning method for remote data concentrator Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0677—Localisation of faults
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/04—Processing captured monitoring data, e.g. for logfile generation
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Abstract
The invention discloses a data monitoring and fault locating method for a remote data concentrator. Which comprises the following steps: firstly, checking whether data sent by equipment is received in a channel or a port through which input data passes, if the data is not inquired, the data source does not send out the data or a communication cable between the data source and the RDC is in fault; if the data is queried, the data source is certified to emit the data. Secondly, checking whether the channel or port through which the output data passes sends data, if the corresponding data output channel or port does not send data, the RDC does not forward the data; if the corresponding data output channel or port is transmitting data, the RDC forwards the data, and the RDC data forwarding function is normal. The test method solves the problems of slow fault location and unclear fault location of RDC data forwarding faults, greatly reduces the labor, time and economic cost, and is simple and convenient in steps and easy to implement. Reference is provided for innovation of the RDC troubleshooting method.
Description
Technical Field
The invention belongs to the technical field of avionic systems, and particularly relates to a data monitoring and fault locating method for a remote data concentrator.
Background
Remote Data Concentrators (RDCs) are widely used in modern aircraft avionics systems and are important electronic devices on aircraft. The remote data concentrator mainly performs conversion and forwarding of AFDX and 429 data and forwarding of 429 data and 429 data. The devices on the airplane which have a direct data cross-linking relation with the remote data concentrator are numerous, so that the remote data concentrator is an important data concentration, conversion and forwarding hub on the airplane. Once the remote data concentrator fails, normal flight of the aircraft is seriously affected, so that research on a data monitoring and fault quick positioning method of the remote data concentrator is necessary.
Disclosure of Invention
The invention aims to provide a data monitoring and fault positioning method for a remote data concentrator, which can accurately monitor the RDC data forwarding condition in real time and can quickly and accurately position faults so as to improve the test efficiency and save the troubleshooting cost of labor, time, economy and the like.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme.
A method of remote data concentrator data monitoring and fault location, the method comprising:
s1, checking whether the channel or port through which the input data passes in the remote data concentrator receives the data sent by the data sender;
s2, searching whether the corresponding data output channel or port in the RDC is transmitting data according to the data forwarding relation in the configuration table in the remote data concentrator; the configuration table records the corresponding relation between the data sender and the data receiver;
and S3, performing data monitoring and fault location on the remote data concentrator according to the viewing result in the S1 and the viewing result in the S2.
The technical scheme of the invention has the characteristics and further improvements that:
1) according to the checking result in the S1, performing data monitoring and fault location on the remote data concentrator, specifically:
if the channel or the port through which the input data passes does not inquire the data, the data sender does not send the data or a communication cable between the data sender and the RDC is in fault;
if the channel or port through which the input data passes queries the data, the data sender sends out the data.
2) According to the checking result in the S2, performing data monitoring and fault location on the remote data concentrator, specifically:
if the corresponding data output channel or port does not transmit data, the RDC does not forward the data;
if the corresponding data output channel or port is transmitting data, the RDC forwards the data, and the RDC data forwarding function is normal.
3) When the remote data concentrator receives 429 data:
in viewing 429 the data, the input channel of 429 data and the Label number of the data currently to be tested need to be determined.
4) When the remote data concentrator receives AFDX data:
when viewing AFDX data, the input port number of the AFDX data needs to be determined.
5) The steps for looking up 429 data to AFDX data are as follows:
(1) after the RDC equipment is electrified, opening a serial port, determining a channel number and a Label number of a data input channel, and printing 429 data to AFDX data related information by the serial port; the related information at least comprises: whether the data sender sends data and whether the remote data concentrator sends data;
(2) if the RDC does not transmit after receiving the data, the serial port only prints the RDC to receive the data information, and does not print the transmitted data information.
(3) If the RDC does not receive the data, the serial port does not print the received data information and the forwarded data information.
6) The steps of looking up AFDX data to 429 data are as follows:
(1) c, after the equipment is electrified, opening a serial port, determining a UDP (user Datagram protocol) port number of AFDX (avionics full Duplex switched Ethernet) data to be monitored, printing the AFDX data by the serial port, and forwarding the AFDX data to relevant information of 429; the related information at least comprises: whether the data sender sends data and whether the remote data concentrator sends data;
(2) if the RDC does not transmit the received data, the serial port only prints the RDC received data information and does not print the transmitted data information;
(3) if the RDC does not receive the data, the serial port does not print the received data information and the forwarded data information.
7) The steps for viewing 429 data into 429 data are as follows:
(1) after the RDC equipment is electrified, opening a serial port, determining a channel number and a Label number of a data input channel, and printing 429 data to AFDX data related information by the serial port; the related information at least comprises: whether the data sender sends data and whether the remote data concentrator sends data;
(2) if the RDC does not transmit after receiving the data, the serial port only prints the RDC to receive the data information, and does not print the transmitted data information.
(3) If the RDC does not receive the data, the serial port does not print the received data information and the forwarded data information.
The principle steps of the data monitoring and fault locating method of the remote data concentrator provided by the technical scheme of the invention are as follows: checking whether the channel or port through which the input data passes receives the data sent by the equipment; if the data is not queried, the data source does not send out the data or a communication cable between the data source and the RDC fails; if the data is inquired, the data source sends out the data; searching whether a corresponding data output channel or port in the RDC sends data or not according to the data forwarding relation in the configuration table; if the corresponding data output channel or port does not transmit data, the RDC does not forward the data; if the corresponding data output channel or port is transmitting data, the RDC forwards the data, and the RDC data forwarding function is normal. The test method solves the problems of slow fault location and unclear fault location of RDC data forwarding faults, greatly reduces the labor, time and economic cost, and is simple and convenient in steps and easy to implement. Reference is provided for innovation of the RDC troubleshooting method.
Drawings
Fig. 1 is a schematic flowchart of a method for monitoring data and locating a fault in a remote data concentrator according to an embodiment of the present invention.
Detailed Description
The remote data concentrator has the main functions of forwarding data, including converting received 429 data sent by a certain device (such as an air engine) into AFDX data and sending the AFDX data to the certain device (such as a flight pipe); converting received AFDX data sent by certain equipment (such as central maintenance) into 429 data and sending the 429 data to certain equipment (such as inertial navigation); and (3) converting 429 data received from a certain device (such as an air engine) into 429 data and sending the 429 data to a certain device (such as an accident record).
The remote data concentrator is provided with a plurality of channels and ports, each channel corresponds to a 429 device which has data cross-linking with the remote data concentrator, the remote data concentrator receives data sent by a certain device from the corresponding channel or sends the data to the certain device, and the ports correspond to UDP packets sent by AFDX devices and UDP packets to be sent to the certain AFDX devices by the remote data concentrator. 429 data are organized in BLOCK BLOCKs, allowing multiple different BLOCK transmissions on a channel. Each BLOCK contains a plurality of LABEL packets (no more than 100), wherein each BLOCK specifies a head LABEL and a tail LABEL, which are unique on the channel and have a one-to-one correspondence with the BLOCK to which it belongs. When the BLOCK is transmitted, each LABEL is transmitted in turn, the head LABEL is transmitted first, the tail LABEL is transmitted last, and other LABELs are transmitted among the LABELs.
If the received data is 429 data, converting AFDX data into the data, adding the data into a cache by the RDC when receiving a head LABEL for a certain BLOCK, starting caching other data of the BLOCK, checking whether the data is in the BLOCK BLOCK definition list when receiving non-head LABEL and non-tail LABEL data, adding the data into the cache if the data is in the BLOCK BLOCK definition list, and discarding if the data is not in the BLOCK BLOCK definition list; and the RDC adds the tail LABEL into the cache when receiving the tail LABEL, considers that the BLOCK BLOCK to which the tail LABEL belongs is received completely, sends all the LABEL data stored in the cache to the corresponding port according to the form of the UDP packet and the forwarding relation in the configuration table, and then clears the cache to wait for the head LABEL again.
If the data is AFDX data converted into 429 data, a UDP packet of an AFDX network can be forwarded to one or more 429 channels, the content sent by each channel is the same, when a UDP packet to be forwarded is converted into 429 packets inside an RDC, the UDP packet to be forwarded is segmented in sequence according to 4 bytes, and each 4 bytes are sent as a 429 packet. Each 429 packet is forwarded to the corresponding lane according to the forwarding relationship in the configuration table.
If the data is 429 data, 429 data is forwarded according to a single LABEL packet, and is immediately forwarded to a corresponding channel according to the forwarding relation in the configuration table after being received.
In the actual use process, faults often occur that a certain device (such as a flying pipe) does not receive data transmitted by a certain device (such as an air engine) forwarded by the RDC. In the subsequent troubleshooting process, it cannot be determined whether the data source (the air engine) does not send out the data or the RDC does not forward the received data. In order to position the fault as soon as possible and accurately, the invention provides a data monitoring and fault positioning method for a remote data concentrator.
The data monitoring and fault locating method of the remote data concentrator is specifically realized as follows:
1. the steps for looking up 429 data to AFDX data are as follows:
and S1, opening a serial port (namely an RDC super terminal) after the RDC equipment is powered on, inputting a menu instruction to enter a primary menu, and printing the serial port as follows:
menu
RDC MENU:
1--Show the info of 429to AFDX
2--Show the info of AFDX to 429
3--Show the info of 429to 429
4--429channel Link status
5--Show the error info of RDC
0--Quit menu
input item:
the printing meaning is as follows: inputting 1 monitoring 429 converted AFDX data; inputting 2 monitoring AFDX to 429 data; input 3 monitors 429 changes 429 data; input 4 monitors 429 link status; inputting 5 error information of the monitoring RDC; inputting 0 to exit the menu;
s2: enter 1 after entering the level one menu, print as follows:
input recv 429chan and label:
at the moment, a channel number and a label number of 429 data to be monitored are input, and the 429 data are printed according to a serial port after carriage return and are forwarded to relevant information of AFDX;
examples are as follows:
input recv 429chan and label:7 272；
RECV 429:chan[07]label[272]>>>>>>SEND AFDX:vl[253]udp_port[1169]
RECV 429:chan[07]label[272]>>>>>>SEND AFDX:vl[249]udp_port[2801]
based on the print information, the RDC can determine that label272 data received from the 429 channel 7 is forwarded to the 1169, 2801 port of AFDX.
S3: if the RDC does not transmit after receiving the data, the serial port only prints the RDC to receive the data information, and does not print the transmitted data information.
S4: if the RDC does not receive the data, the serial port does not print the received data information and the forwarded data information.
2. The steps of looking up AFDX data to 429 data are as follows:
s1, opening a serial port (namely, an RDC super terminal) after the RDC equipment is powered on, inputting a menu instruction to enter a primary menu, and performing step S1 that the serial port printing condition is the same as that of viewing 429 data to AFDX data:
s2: input 2 after entering the level one menu, print as follows:
input recv AFDX udp_port
at the moment, the UDP port number of the AFDX data to be monitored is input, the AFDX data is printed according to the serial port after carriage return and is forwarded to the related information of 429;
examples are as follows:
input recv AFDX udp_port:3436
RECV AFDX:vl[50]udp[3436]>>>>>>SEND 429:chan[09]:^367,^370,^371,RECV AFDX:vl[50]udp[3436]>>>>>>SEND 429:chan[09]:^367,^370,^371,
based on the printing information, the RDC can determine that AFDX data of 3436 port is forwarded to 429 channel 9, where 429 data label is 367, 370, and 371.
S3: if the RDC does not transmit after receiving the data, the serial port only prints the RDC to receive the data information, and does not print the transmitted data information.
S4: if the RDC does not receive the data, the serial port does not print the received data information and the forwarded data information.
3. The steps for viewing 429 data into 429 data are as follows:
s1, opening a serial port (namely, an RDC super terminal) after the RDC equipment is powered on, inputting a menu instruction to enter a primary menu, and performing step S1 that the serial port printing condition is the same as that of viewing 429 data to AFDX data:
s2: input 3, after entering the level one menu, prints as follows:
input recv 429chan and label:
at the moment, a channel number and a label number of 429 data to be monitored are input, and the 429 data are printed according to a serial port after carriage return and are forwarded to relevant information of 429;
examples are as follows:
input recv 429chan and label:7 272
RECV 429:chan[07]label[272]>>>>>>SEND 429:chan[01]
RECV 429:chan[07]label[272]>>>>>>SEND 429:chan[03]
RECV 429:chan[07]label[272]>>>>>>SEND 429:chan[05]
based on the print information, the RDC forwards the label272 data for channel 429, channel 7, to channels 429, 1, 3, 5.
S3: if the RDC does not transmit after receiving the data, the serial port only prints the RDC to receive the data information, and does not print the transmitted data information.
S4: if the RDC does not receive the data, the serial port does not print the received data information and the forwarded data information.
The test method solves the problems of slow fault location and unclear fault location of RDC data forwarding faults, greatly reduces the labor, time and economic cost, and is simple and convenient in steps and easy to implement. Reference is provided for innovation of the RDC troubleshooting method.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (8)
1. A method for remote data concentrator data monitoring and fault location, the method comprising:
s1, checking whether the channel or port through which the input data passes in the remote data concentrator receives the data sent by the data sender;
s2, searching whether the corresponding data output channel or port in the RDC is transmitting data according to the data forwarding relation in the configuration table in the remote data concentrator; the configuration table records the corresponding relation between the data sender and the data receiver;
and S3, performing data monitoring and fault location on the remote data concentrator according to the viewing result in the S1 and the viewing result in the S2.
2. The method according to claim 1, wherein the data monitoring and fault locating of the remote data concentrator are performed according to the checking result in S1, and specifically include:
if the channel or the port through which the input data passes does not inquire the data, the data sender does not send the data or a communication cable between the data sender and the RDC is in fault;
if the channel or port through which the input data passes queries the data, the data sender sends out the data.
3. The method according to claim 1, wherein the data monitoring and fault locating of the remote data concentrator are performed according to the checking result in S2, and specifically include:
if the corresponding data output channel or port does not transmit data, the RDC does not forward the data;
if the corresponding data output channel or port is transmitting data, the RDC forwards the data, and the RDC data forwarding function is normal.
4. The remote data concentrator data monitoring and fault locating method of claim 1, wherein when the remote data concentrator receives 429 data:
in viewing 429 the data, the input channel of 429 data and the Label number of the data currently to be tested need to be determined.
5. The method of claim 1, wherein when the AFDX data is received by the remote data concentrator, the method further comprises:
when viewing AFDX data, the input port number of the AFDX data needs to be determined.
6. The method as claimed in claim 1, wherein the step of looking up 429 data to AFDX data comprises the steps of:
(1) after the RDC equipment is electrified, opening a serial port, determining a channel number and a Label number of a data input channel, and printing 429 data to AFDX data related information by the serial port; the related information at least comprises: whether the data sender sends data and whether the remote data concentrator sends data;
(2) if the RDC does not transmit after receiving the data, the serial port only prints the RDC to receive the data information, and does not print the transmitted data information.
(3) If the RDC does not receive the data, the serial port does not print the received data information and the forwarded data information.
7. The method as claimed in claim 1, wherein the step of reviewing AFDX data 429 data is as follows:
(1) c, after the equipment is electrified, opening a serial port, determining a UDP (user Datagram protocol) port number of AFDX (avionics full Duplex switched Ethernet) data to be monitored, printing the AFDX data by the serial port, and forwarding the AFDX data to relevant information of 429; the related information at least comprises: whether the data sender sends data and whether the remote data concentrator sends data;
(2) if the RDC does not transmit the received data, the serial port only prints the RDC received data information and does not print the transmitted data information;
(3) if the RDC does not receive the data, the serial port does not print the received data information and the forwarded data information.
8. The method of claim 1, wherein the step of looking up 429 data to 429 data is as follows:
(1) after the RDC equipment is electrified, opening a serial port, determining a channel number and a Label number of a data input channel, and printing 429 data to AFDX data related information by the serial port; the related information at least comprises: whether the data sender sends data and whether the remote data concentrator sends data;
(2) if the RDC does not transmit after receiving the data, the serial port only prints the RDC to receive the data information, and does not print the transmitted data information.
(3) If the RDC does not receive the data, the serial port does not print the received data information and the forwarded data information.
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Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000038986A (en) * | 1998-12-10 | 2000-07-05 | 서평원 | Remote data concentrator and method for data transmission |
| US20060062143A1 (en) * | 2004-09-22 | 2006-03-23 | Dave Bibby | Dual lane connection to dual redundant avionics networks |
| CN101094156A (en) * | 2003-06-26 | 2007-12-26 | 株式会社东芝 | Transmission device of railway carriage |
| CN101621445A (en) * | 2008-07-04 | 2010-01-06 | 弥亚微电子（上海）有限公司 | Interception confirming method for trunking process and power carrier communication system thereof |
| CN102170368A (en) * | 2011-04-18 | 2011-08-31 | 北京航空航天大学 | Intelligent fault locating method of distributed measuring system facing heavy gauge member |
| CN102177681A (en) * | 2011-04-21 | 2011-09-07 | 华为技术有限公司 | Fault detection method and system |
| CN103259687A (en) * | 2013-06-04 | 2013-08-21 | 沈阳空管技术开发有限公司 | Air traffic control data access platform in civil aviation |
| EP2790073A1 (en) * | 2013-04-09 | 2014-10-15 | Airbus Operations GmbH | Control of aircraft systems with at least two remote data concentrators for control of an aircraft system component |
| CN104917628A (en) * | 2015-04-09 | 2015-09-16 | 南京邮电大学 | Automatic diagnosis method of Ethernet router/switch packet loss fault |
| CN104954435A (en) * | 2015-04-28 | 2015-09-30 | 青岛理工大学 | ZigBee and Web GIS integrated city bus operation monitoring system |
| CN106161128A (en) * | 2015-04-09 | 2016-11-23 | 中兴通讯股份有限公司 | A kind of multicast traffic stream monitoring method, device and multicast forwarding equipment |
| CN109936483A (en) * | 2019-04-22 | 2019-06-25 | 中国航空无线电电子研究所 | Universal intelligent remote data concentrator |
| CN110061880A (en) * | 2019-04-25 | 2019-07-26 | 北京智芯微电子科技有限公司 | The data transmission detection device and method of concentrator and remote communication module |
| CN110311697A (en) * | 2019-06-24 | 2019-10-08 | 中国航空无线电电子研究所 | Remote data concentrator |
| CN110830284A (en) * | 2018-08-14 | 2020-02-21 | 杭州达乎科技有限公司 | SDN network-based service fault monitoring method and device |
| CN111211999A (en) * | 2019-11-28 | 2020-05-29 | 中国船舶工业***工程研究院 | OVS-based real-time virtual network implementation method |
-
2020
- 2020-12-29 CN CN202011613048.1A patent/CN112787857B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000038986A (en) * | 1998-12-10 | 2000-07-05 | 서평원 | Remote data concentrator and method for data transmission |
| CN101094156A (en) * | 2003-06-26 | 2007-12-26 | 株式会社东芝 | Transmission device of railway carriage |
| US20060062143A1 (en) * | 2004-09-22 | 2006-03-23 | Dave Bibby | Dual lane connection to dual redundant avionics networks |
| CN101621445A (en) * | 2008-07-04 | 2010-01-06 | 弥亚微电子（上海）有限公司 | Interception confirming method for trunking process and power carrier communication system thereof |
| CN102170368A (en) * | 2011-04-18 | 2011-08-31 | 北京航空航天大学 | Intelligent fault locating method of distributed measuring system facing heavy gauge member |
| CN102177681A (en) * | 2011-04-21 | 2011-09-07 | 华为技术有限公司 | Fault detection method and system |
| EP2790073A1 (en) * | 2013-04-09 | 2014-10-15 | Airbus Operations GmbH | Control of aircraft systems with at least two remote data concentrators for control of an aircraft system component |
| CN103259687A (en) * | 2013-06-04 | 2013-08-21 | 沈阳空管技术开发有限公司 | Air traffic control data access platform in civil aviation |
| CN104917628A (en) * | 2015-04-09 | 2015-09-16 | 南京邮电大学 | Automatic diagnosis method of Ethernet router/switch packet loss fault |
| CN106161128A (en) * | 2015-04-09 | 2016-11-23 | 中兴通讯股份有限公司 | A kind of multicast traffic stream monitoring method, device and multicast forwarding equipment |
| CN104954435A (en) * | 2015-04-28 | 2015-09-30 | 青岛理工大学 | ZigBee and Web GIS integrated city bus operation monitoring system |
| CN110830284A (en) * | 2018-08-14 | 2020-02-21 | 杭州达乎科技有限公司 | SDN network-based service fault monitoring method and device |
| CN109936483A (en) * | 2019-04-22 | 2019-06-25 | 中国航空无线电电子研究所 | Universal intelligent remote data concentrator |
| CN110061880A (en) * | 2019-04-25 | 2019-07-26 | 北京智芯微电子科技有限公司 | The data transmission detection device and method of concentrator and remote communication module |
| CN110311697A (en) * | 2019-06-24 | 2019-10-08 | 中国航空无线电电子研究所 | Remote data concentrator |
| CN111211999A (en) * | 2019-11-28 | 2020-05-29 | 中国船舶工业***工程研究院 | OVS-based real-time virtual network implementation method |
Non-Patent Citations (1)
| Title |
|---|
| 刘帅等: "远程数据集中器时间触发通信技术研究", 《信息通信》, no. 03, 15 March 2020 (2020-03-15) * |
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