CN105635211B - Vehicle-mounted real time information communication means based on multifunctional vehicle bus - Google Patents
Vehicle-mounted real time information communication means based on multifunctional vehicle bus Download PDFInfo
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- CN105635211B CN105635211B CN201410607307.8A CN201410607307A CN105635211B CN 105635211 B CN105635211 B CN 105635211B CN 201410607307 A CN201410607307 A CN 201410607307A CN 105635211 B CN105635211 B CN 105635211B
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Abstract
The invention discloses a kind of real time information based on multifunctional vehicle bus to send and receive method, including：Obtain real time information；Data with priority are stored in temporary queue；Select network；Send data to ground monitoring system；Receive the data from ground；Judge the type of reception data, if acknowledgement frame, it then deletes and keeps in the corresponding data of the acknowledgement frame in queue, if failure diagnosis information, then shown in train intelligent terminal, otherwise, judge keep in queue in whether the data of transmission in need, if there are data to need to send, backup network is selected to send the data.Wherein, when selection selects network, this method provides three kinds of available networks, and the high real time information of regulation priority needs to return acknowledgement frame to ensure that receiving terminal has correctly received data.The real time information of acquisition timely and effectively can be sent to the processing of ground receiver end by the present invention, while can improve the reliability of communication.
Description
Technical field
It is specifically a kind of vehicle-mounted real-time based on multifunctional vehicle bus the present invention relates to a kind of vehicle-mounted data communication means
Information communicating method.
Background technology
Currently, onboard system needs to carry out real-time Communication for Power to some on-vehicle informations in normal course of operation, such as send
The fault message of vehicle, warning information, remote operation information etc..By to railcar operating status and the equipment note in operation
The real-time radio transmission for recording data, provides real-time failure diagnosis information, and then provide remote technology for troubleshooting to vehicle
It supports, the fault handling time and the proteges of the powerful who stay with their benefactions like parasites during reduction railcar main track operation are led.
In a practical situation, due to influences such as ambient weather, positions, cause network state bad, it cannot be in time by failure
Information is sent to ground, and to be analyzed until that can obtain fault message after locomotive Hui Ku, so as to cause that can not locate in real time
Reason and debugging, can not ensure the reliability of real-time Communication for Power.
In order to which on-vehicle information is sent to floor treatment, and the processing information from ground is received, needs design one
Kind is capable of real-time reception and sends the communication means of vehicle-mounted real time information.
Invention content
It is an object of the invention to overcome deficiency in the prior art, provide a kind of based on the vehicle-mounted of multifunctional vehicle bus
Real time information communication means can realize that real time information communicates between train and ground, solve in the prior art that on-vehicle information is not
It can be sent to ground in time, the technical issues of reliability of real-time Communication for Power cannot be guaranteed.
In order to achieve the above objectives, the technical solution adopted in the present invention is：It is a kind of based on the vehicle-mounted of multifunctional vehicle bus
Information communicating method includes the following steps：
Step 1：Train intelligent terminal obtains vehicle-mounted real time information to be sent；
Step 2：The vehicle-mounted real time information that poll has obtained, judges whether data have priority：If so, then the data are deposited
Storage is in temporary queue；If no, selecting the data transmission network having connected, and send data to ground monitoring system；
Step 3：Train intelligent terminal judges whether there is data and needs to receive, if no data needs to receive, return to step
1, it reacquires, poll real time information；If there are data to need to receive, 4 are gone to step；
Step 4：Judge whether the data received are acknowledgement frame：If acknowledgement frame, then deletes and keep in the acknowledgement frame in queue
Corresponding data, and return to step 1 reacquire, poll real time information；If not acknowledgement frame, then go to step 5；
Step 5：Judge whether the data received are failure diagnosis information：If so, being shown in train intelligent terminal；
If it is not, then going to step 6；
Step 6：Judge to keep in queue whether the data of transmission in need are selected and walked if there are data to need to send
The rapid 2 different data transmission networks having connected send the data；If no data needs to send, return to step 1 reacquires
Information and poll real time information.
Further, the data transmission network includes key data transmission network and preliminary data transmission network, described
Key data transmission network is：Cdma network；The preliminary data transmission network includes：GPRS network and WIFI wireless locals
Net.
Preferably, steps are as follows for the selection of data transmission network：
Step 1）：Judge whether cdma network can be used, if available, turns to step 4）, otherwise turn to step 2）；
Step 2）：Judge whether GPRS network can be used, if available, turns to step 4）, otherwise turn to step 3）；
Step 3）：Judge whether train enters the station, if having entered the station, continues to judge whether WIFI WLANs can be used, if
It can use, then turn to step 4）；If train does not enter the station or WIFI WLANs are unavailable, step 1 is turned to）, re-start number
It is selected according to transmission network；
Step 4）：Send data to ground monitoring system.
Compared with prior art, the invention has the advantages that：Provide a kind of train and ground real-time Communication for Power
Method, can by vehicle-mounted real time information according to the requirements such as priority by plurality of wireless networks be sent to ground monitoring system carry out
Processing improves the reliability of information transmission；Vehicular intelligent terminal device shows the failure diagnosis information from ground, improves
The real-time and accuracy of driver's troubleshooting；Real time information is sent to ground prison using three kinds of optional data transmission networks
Control system processing, and receive ground monitoring system transmission failure diagnosis information and acknowledgement frame, can be improved communication efficiency and can
By property.
Description of the drawings
In order to make the content of the present invention more clearly understood, further details of theory is made to the present invention in conjunction with attached drawing
It is bright, wherein：
Fig. 1 is the flow chart of the present invention.
The data transmission network of Fig. 2 present invention selects flow chart.
Fig. 3 is the data frame format figure of the present invention.
Specific implementation mode
In real time information communication means provided in an embodiment of the present invention based on multifunctional vehicle bus, by the pending of acquisition
The real time information sent is stored according to the height of priority in temporary queue, and is taken from temporary queue according to the height of priority
Data are sent, and three kinds of networks are provided during transmission data：Cdma network, GPRS network and WIFI wireless locals
Net, while the receivable information from ground monitoring system is transmitted to Vehicular intelligent terminal and is handled.
The invention will be further described below in conjunction with the accompanying drawings, but should not be limited the scope of the invention with this.
As shown in Figure 1, real time information communication means flow chart provided by the invention, includes the following steps：
Step 1：Train intelligent terminal obtains vehicle-mounted real time information to be sent.
Step 2：The vehicle-mounted real time information that poll has obtained, judges whether data have priority：If so, then the data are deposited
Storage is in temporary queue；If no, selecting the data transmission network having connected, and send data to ground monitoring system.If
It is because the information on certain vehicle bus can seriously threaten traffic safety to set priority（Such as fire alarm information）, priority is higher
Data, then on the top of temporary queue, for priority is identical or data without priority, then according to the best original of real-time
Then, newest data are first sent.
Data transmission network includes key data transmission network and preliminary data transmission network, key data transmission network
For：Cdma network.Preliminary data transmission network includes：GPRS network and WIFI WLANs, wherein WIFI WLANs
It is used when vehicle arrives at a station.
As shown in Fig. 2, for the selection flow chart of data transmission network in the present invention, it is as follows：
Step 1）：Judge whether cdma network can be used, if available, turns to step 4）, otherwise turn to step 2）；
Step 2）：Judge whether GPRS network can be used, if available, turns to step 4）, otherwise turn to step 3）；
Step 3）：Judge whether train enters the station, if having entered the station, continues to judge whether WIFI WLANs can be used, if
It can use, then turn to step 4）；If train does not enter the station or WIFI WLANs are unavailable, step 1 is turned to）, re-start number
It is selected according to transmission network；
Step 4）：Send data to ground monitoring system.
Step 3：Train intelligent terminal judges whether there is data and needs to receive, if no data needs to receive, return to step
1, it reacquires, poll real time information；If there are data to need to receive, 4 are gone to step.
Step 4：Judge whether the data received are acknowledgement frame：If acknowledgement frame, then deletes and keep in the acknowledgement frame in queue
Corresponding data, and return to step 1 reacquire, poll real time information；If not acknowledgement frame, then go to step 5.Setting confirms
The purpose of frame is：It must assure that ground monitoring system accurately receives the information, after sending the information, if not receiving ground
The acknowledgement frame that face monitoring system is sent, then must retransmit until ground monitoring system accurately receives.When the number of reception
According to for acknowledgement frame when, need to determine the data corresponding to the acknowledgement frame, and delete the data in temporary queue.
Step 5：Judge whether the data received are failure diagnosis information：If so, shown in train intelligent terminal,
The staff of train operation room can carry out corresponding operating according to failure diagnosis information；If it is not, then going to step 6.
Step 6：Judge to keep in queue whether the data of transmission in need are selected and walked if there are data to need to send
The rapid 2 different data transmission networks having connected send the data；If no data needs to send, return to step 1 reacquires
Information and poll real time information.The data of transmission in need, illustrate have data not send success in temporary queue, need to carry out weight
Hair, when being retransmitted, uses backup network：GPRS network or WIFI WLANs are sent, and weight is carried out in backup network
When hair, major networks, i.e. cdma network can be used for sending other data, can improve the rate of data transmission.
As shown in figure 3, being data frame format figure, train intelligent terminal can determine whether vehicle-mounted real time information according to data frame
The information such as type, priority and time, specifically include：
Frame type：1, if 0, then it represents that acknowledgement frame, if 1, then it represents that failure diagnosis information.
Priority：2.If 00, then it represents that priority is 1 class, if 01, then it represents that priority is 2 classes.
Time marks：27, for mark failure occur time, including when（5）, point（6）, the second（6）And milli
Second（10）.
Claims (3)
1. the vehicle-mounted information communication method based on multifunctional vehicle bus, which is characterized in that include the following steps：
Step 1：Train intelligent terminal obtains vehicle-mounted real time information to be sent；
Step 2：The vehicle-mounted real time information that poll has obtained, judges whether data have priority：If so, then the data are stored in
In temporary queue；If no, selecting the data transmission network having connected, and send data to ground monitoring system；
Step 3：Train intelligent terminal judges whether there is data and needs to receive, if no data needs to receive, return to step 1, and weight
New acquisition, poll real time information；If there are data to need to receive, 4 are gone to step；
Step 4：Judge whether the data received are acknowledgement frame：If acknowledgement frame, then deletes and keep in acknowledgement frame correspondence in queue
Data, and return to step 1 reacquires, poll real time information；If not acknowledgement frame, then go to step 5；
Step 5：Judge whether the data received are failure diagnosis information：If so, being shown in train intelligent terminal；If no
It is then to go to step 6；
Step 6：Judge to keep in queue whether the data of transmission in need are selected with step 2 not if there are data to need to send
The same data transmission network having connected sends the data；If no data needs to send, return to step 1 reacquires information
With poll real time information.
2. the vehicle-mounted information communication method according to claim 1 based on multifunctional vehicle bus, which is characterized in that described
Data transmission network includes key data transmission network and preliminary data transmission network, and the key data transmission network is：
Cdma network；The preliminary data transmission network includes：GPRS network and WIFI WLANs.
3. the vehicle-mounted information communication method according to claim 2 based on multifunctional vehicle bus, which is characterized in that data
Steps are as follows for the selection of transmission network：
Step 1）：Judge whether cdma network can be used, if available, turns to step 4）, otherwise turn to step 2）；
Step 2）：Judge whether GPRS network can be used, if available, turns to step 4）, otherwise turn to step 3）；
Step 3）：Judge whether train enters the station, if having entered the station, continues to judge whether WIFI WLANs can be used, if available,
Then turn to step 4）；If train does not enter the station or WIFI WLANs are unavailable, step 1 is turned to）, re-start data transmission
Network selects；
Step 4）：Send data to ground monitoring system.
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| CN201410607307.8A CN105635211B (en) | 2014-11-03 | 2014-11-03 | Vehicle-mounted real time information communication means based on multifunctional vehicle bus |
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| CN201410607307.8A CN105635211B (en) | 2014-11-03 | 2014-11-03 | Vehicle-mounted real time information communication means based on multifunctional vehicle bus |
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| CN105635211B true CN105635211B (en) | 2018-10-30 |
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| CN108985279B (en) * | 2018-08-28 | 2020-11-03 | 上海仁童电子科技有限公司 | Fault diagnosis method and device for MVB waveform of multifunctional vehicle bus |
| CN109484430B (en) * | 2018-10-10 | 2020-04-28 | 同济大学 | Data framing method and device for high-speed magnetic levitation vehicle-mounted radio control unit |
| CN110084360B (en) * | 2019-04-26 | 2023-08-18 | 长春师范大学 | MVB period real-time improvement algorithm based on GA-BP |
| CN111970185B (en) * | 2020-07-06 | 2022-08-30 | 惠州市德赛西威汽车电子股份有限公司 | Active vehicle-mounted voice interaction method and system |
| CN112087491A (en) * | 2020-08-10 | 2020-12-15 | 中国铁道科学研究院集团有限公司电子计算技术研究所 | Ground-to-locomotive data transmission method and system |
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| ATE278279T1 (en) * | 2002-06-20 | 2004-10-15 | Siemens Ag | DATA TRANSFER PROCEDURE |
| CN101079188B (en) * | 2007-07-05 | 2011-06-15 | 青岛海信网络科技股份有限公司 | Vehicle mounted terminal and public transportation system containing the vehicle-mounted terminal |
| CN201063175Y (en) * | 2007-07-26 | 2008-05-21 | 北京东风机车电器厂 | System for transferring and analyzing remote information of vehicle |
| CN201331835Y (en) * | 2008-12-30 | 2009-10-21 | 青岛海信网络科技股份有限公司 | Bus station yard signal prioritizing device and public transit system therewith |
| CN101574975B (en) * | 2009-06-03 | 2011-03-16 | 北京六捷科技有限公司 | Vehicle monitoring system based on CTCS-3 level train control system and terminal thereof |
| CN101945304A (en) * | 2010-07-08 | 2011-01-12 | 上海新干通通信设备有限公司 | Driverless TETRA wireless vehicle-mounted terminal for subways |
| GB2498564B (en) * | 2012-01-20 | 2014-06-11 | Siemens Plc | Rail crossing protection system |
| CN103763335A (en) * | 2013-11-29 | 2014-04-30 | 中南大学 | Train-ground wireless communication system applied to running states of HXD1 type locomotives |
| CN103693079B (en) * | 2013-12-11 | 2016-01-27 | 东方通信股份有限公司 | Based on the subway train automatic tracking system of Digital Clustering |
| CN104184681B (en) * | 2014-09-16 | 2018-02-27 | 南车株洲电力机车有限公司 | Communication means and device between ECP system display terminal and head end control unit |
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