CN105491595B - Train-ground communication Wireless DT System and method - Google Patents
Train-ground communication Wireless DT System and method Download PDFInfo
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- CN105491595B CN105491595B CN201510825131.8A CN201510825131A CN105491595B CN 105491595 B CN105491595 B CN 105491595B CN 201510825131 A CN201510825131 A CN 201510825131A CN 105491595 B CN105491595 B CN 105491595B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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Abstract
The present invention discloses a kind of train-ground communication Wireless DT System and method, the system includes the train radio access point on train, multiple terrestrial wireless access points outside train, wireless access point manager and interchanger, the multiple terrestrial wireless access point and wireless access point manager are respectively connected to the interchanger, signal of the train radio access point for terrestrial wireless access point described in wireless receiving, wireless access point manager can record received signal strength, further include: first processor, second processor and control unit, the first processor is located on the train, the second processor is located under the train, described control unit is for setting first server for the first processor or setting second server for the second processor, and control the wireless access point management The signal strength is sent to the first server or second server by device.
Description
Technical field
The present invention relates to train auto-matic control technical fields, in particular to a kind of train-ground communication Wireless DT System
With the wireless road measuring method of train-ground communication.
Background technique
Vehicle-ground wireless communication system is the core of CBTC (train automatic controlling system).Train-ground communication includes wired network and nothing
Gauze, for wireless network in the prior art using the wireless communication for being based on WLAN (WLAN), and wireless drive test is then
It is the mode for realizing detection wireless coverage situation.
The method that wireless drive test uses at present is to receive AP (wireless access point) signal by wireless network card, and obtain each
The field strength of AP.Since WLAN is using 2.4GHz frequency range, and 2.4GHz is public frequency band, and daily many equipment can to vehicle
Wireless communication generates interference, so the frequency range that WLAN is used changes；At the same time, the framework of WLAN is also changed, and is adopted
With narrow band communication mode, in this background, the received method of wireless network card is no longer applicable in.
Summary of the invention
Technical problem to be solved by the present invention lies in realize nothing how in the case where WLAN framework and frequency range change
Line signal drive test.
For this purpose, the present invention proposes a kind of train-ground communication Wireless DT System, including the train radio being located on train
Access point, multiple terrestrial wireless access points, wireless access point manager and interchanger outside train, the multiple ground without
Line access point and wireless access point manager are respectively connected to the interchanger, and the train radio access point is for wirelessly connecing
The signal of the terrestrial wireless access point is received, wireless access point manager can record received signal strength, further includes:
First processor, second processor and control unit, the first processor are located on the train, and described
Two processors are located under the train,
Described control unit is for setting first server for the first processor or setting the second processor
Be set to second server, and control the wireless access point manager by the signal strength be sent to the first server or
Second server.
Preferably, described control unit is in the first request for receiving the terminal on the train, at described first
Reason device is set as first server,
The first server is also used to the letter of the multiple terrestrial wireless access point and the train radio access point
Number intensity is sent to the terminal on the train,
The second processor is arranged in the second request for receiving the terminal outside the train for described control unit
For second server,
The second server is also used to the letter of the multiple terrestrial wireless access point and the train radio access point
Number intensity is sent to the terminal outside the train.
Preferably, the wireless access point manager is also used to calculate the terrestrial wireless access according to the signal strength
The signal-to-noise ratio of point, is sent to the first server or second server for the signal-to-noise ratio,
The first server is used to the signal-to-noise ratio being sent to the terminal on the train, or
The second server is used for the terminal being sent to the signal-to-noise ratio outside the train.
Preferably, described control unit controls the wireless access when receiving first request or the second request
Point manager opens the function of sending wireless access point information.
Preferably, described control unit controls the wireless access point manager to the first server or described second
The time interval that server sends the signal strength is greater than interval when transmission train information data.
The invention also provides a kind of train automatic controlling systems, including above-mentioned train-ground communication Wireless DT System.
The invention also provides a kind of wireless road measuring methods of the train-ground communication based on above system, comprising:
S1 sets first server for first processor or sets second server for second processor；
S2, signal strength is sent to first server with control wireless access point manager or second server connects.
Preferably, the step S1 includes: and handles in the first request for receiving the terminal on train by described first
Device is set as first server；
The method also includes:
The first server is by the signal strength of the multiple terrestrial wireless access point and the train radio access point
The terminal being sent on the train；
The step S1 includes: in the second request for receiving the terminal outside the train, by the second processor
Second server is set as,
The method also includes:
The second server is by the signal strength of the multiple terrestrial wireless access point and the train radio access point
The terminal being sent to outside the train.
Preferably, the step S1 further include: wireless access point manager calculates the ground according to the signal strength
The signal-to-noise ratio is sent to the first server or second server by the signal-to-noise ratio of wireless access point,
The signal-to-noise ratio is sent to the terminal on the train by the first server, or
The signal-to-noise ratio is sent to the terminal outside the train by the second server.
Preferably, further includes: when receiving first request or the second request, control the wireless access point management
Device opens the function of sending wireless access point information.
According to the above technical scheme, the present invention can realize wireless communication in the case where WLAN frequency range and framework change
Number drive test, so that the equipment on train and outside train can obtain the outer wireless access point of train relative to train radio access point
Signal strength, corresponding signal-to-noise ratio can also be received.
Detailed description of the invention
Fig. 1 shows the schematic block diagram of train-ground communication Wireless DT System according to an embodiment of the invention；
Fig. 2 shows the structural schematic diagrams of train-ground communication Wireless DT System according to an embodiment of the invention；
Fig. 3 shows the schematic flow diagram of the wireless road measuring method of train-ground communication according to an embodiment of the invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical solution in the embodiment of the present invention is explicitly described, it is clear that described embodiment is the present invention
A part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
All ground embodiments obtained under the premise of creative work are made, shall fall within the protection scope of the present invention.
As shown in Figure 1, train-ground communication Wireless DT System 10 according to an embodiment of the invention, including be located on train
Train radio access point 11, multiple terrestrial wireless access points 12 outside train (terrestrial wireless is illustrated only in Fig. 1
Access point 12, the terrestrial wireless access point 12 being physically located outside train can be multiple), wireless access point manager 13 and hand over
Change planes 14, multiple terrestrial wireless access points 12 and wireless access point manager 13 are respectively connected to interchanger 14, train radio
Access point 11 is used for the signal strength of wireless receiving terrestrial wireless access point 12, and wireless access point manager 13 can record its reception
The signal strength arrived, further includes:
First processor 15, second processor 16 and control unit 17, first processor 15 is located on train, at second
Reason device 16 is located under train.
Control unit 17 is used to set first processor 15 to first server or sets for second processor 16
Two servers, and control wireless access point manager 13 and signal strength is sent to first server or second server.
As shown in Fig. 2, second processor may also connect to interchanger, exchanged to pass through with wireless access point manager
Machine transmits information, and first processor and wireless access point manager wirelessly transmit information.Train radio access point by
In being located on train, so can not directly be communicated by interchanger with wireless access point manager, wireless parties can be passed through
Formula transmits information.
Since first processor is located on train, by first processor as first server received signal strength
When, so that it may the signal strength of terrestrial wireless access point is learned ON TRAINS, and the signal to determine ground wireless access point is opposite
In the coverage condition of train radio access point, preferably to carry out communication preparation.
Similarly, strong as second server reception signal by second processor since second processor is located at outside train
When spending, the signal strength of terrestrial wireless access point can be learned under train, the personnel under train is facilitated to be managed.
Due to the communication framework limitation between wireless access point manager and wireless access point, so that the same time can only deposit
In a server.
Preferably, first processor 15 is arranged in the first request for receiving the terminal on train for control unit 17
For first server,
First server is also used to for the signal strength of multiple terrestrial wireless access points and train radio access point being sent to
Terminal on train,
Control unit 17 sets the second clothes for second processor 16 in the second request for receiving the terminal outside train
Business device,
Second server is also used to for the signal strength of multiple terrestrial wireless access points and train radio access point being sent to
Terminal outside train.
Terminal on train is personal notebook or other computer equipments, and it is more directly can to send acquisition to control unit
First request of the signal strength of a terrestrial wireless access point and train radio access point, control unit are receiving the request
When, first server is set by first processor, so that signal strength is sent to the end on train by first server
End, so that the passenger on train can understand wireless coverage of the terrestrial wireless access point relative to wireless access point on train in time
Situation, to carry out communication preparation.
Similarly, the terminal outside train is also personal notebook or other computer equipments, can directly be sent out to control unit
The second request of the signal strength for obtaining multiple terrestrial wireless access points and train radio access point is sent, control unit is receiving
When the request, second server is set by second processor, so that signal strength is sent to train by second server
Outer terminal, so as to train outside personnel can be convenient and understand nothing of the terrestrial wireless access point relative to wireless access point on train
Line coverage condition, to be managed.
It should be noted that first processor and second processor are personal notebook or other computer equipments.
Preferably, wireless access point manager 13 is also used to calculate the noise of terrestrial wireless access point according to signal strength
Than, signal-to-noise ratio is sent to first server or second server,
First server is used to signal-to-noise ratio being sent to the terminal on train, or
Second server is used for the terminal being sent to signal-to-noise ratio outside train.
Preferably, control unit 17 controls wireless access point manager 13 when receiving the first request or the second request
Open the function of sending wireless access point information.
The first request and the second request in the present embodiment may include encryption information, so that wireless access point management
Device only just opens the function of sending wireless access point information when control unit receives the first request or the second request, avoids him
People illegally obtains wireless coverage situation of the terrestrial wireless access point relative to wireless access point on train, and avoids without first
Wireless access point manager issues above-mentioned signal strength without communicating money caused by receiving end when server and second server
Source waste.
Preferably, control unit 17 controls wireless access point manager 13 and sends letter to first server or second server
The time interval of number intensity is greater than the interval (such as 300ms) when transmission train information data.
When being continuously connected to the first request and the second request, need first to set first server for first processor, it is complete
After the communication of signal strength, cancel the setting of first server, then set second server for second processor, under completion
The communication of signal strength.If the interval of wireless access point manager transmission signal strength is too small twice, will affect wireless
The performance of access point manager can guarantee the good performance of wireless access point manager through this embodiment.
The invention also provides a kind of train automatic controlling systems, including above-mentioned train-ground communication Wireless DT System 10.It adopts
It can be become in WLAN frequency range and framework with the train automatic controlling system of this implementation column train-ground communication Wireless DT System
Wireless signal drive test is realized in the case where change.
As shown in figure 3, the invention also provides a kind of wireless road measuring methods of the train-ground communication based on above system, comprising:
S1 sets first server for first processor or sets second server for second processor；
S2, signal strength is sent to first server with control wireless access point manager or second server connects.
Preferably, step S1 includes: and sets first processor in the first request for receiving the terminal on train
First server；
Method further include:
The signal strength of multiple terrestrial wireless access points and train radio access point is sent on train by first server
Terminal；
Step S1 includes: to set the second clothes for second processor in the second request for receiving the terminal outside train
Business device,
Method further include:
The signal strength of multiple terrestrial wireless access points and train radio access point is sent to outside train by second server
Terminal.
Preferably, step S1 further include: wireless access point manager calculates terrestrial wireless access point according to signal strength
Signal-to-noise ratio is sent to first server or second server by signal-to-noise ratio,
Signal-to-noise ratio is sent to the terminal on train by first server, or
Signal-to-noise ratio is sent to the terminal outside train by second server.
Preferably, further includes: when receiving the first request or the second request, control wireless access point manager opens hair
Send the function of wireless access point information.
The technical scheme of the present invention has been explained in detail above with reference to the attached drawings, it is contemplated that in the prior art, for changing
WLAN frequency range and framework, it is difficult to realize wireless signal drive test.It according to the technical solution of the present invention, can be in WLAN frequency range and structure
Frame realizes wireless signal drive test in the case where changing, so that the equipment on train and outside train can obtain the outer nothing of train
Signal strength of the line access point relative to train radio access point, can also receive corresponding signal-to-noise ratio.
In the present invention, term " first " and " second " are used for description purposes only, and are not understood to indicate or imply phase
To importance.Term " multiple " refers to two or more, unless otherwise restricted clearly.
Although the embodiments of the invention are described in conjunction with the attached drawings, but those skilled in the art can not depart from this hair
Various modifications and variations are made in the case where bright spirit and scope, such modifications and variations are each fallen within by appended claims
Within limited range.
Claims (8)
1. a kind of train-ground communication Wireless DT System, which is characterized in that including be located at train on train radio access point, be located at
Multiple terrestrial wireless access points, wireless access point manager and interchanger outside train, the multiple terrestrial wireless access point with
And wireless access point manager is respectively connected to the interchanger, the train radio access point is for ground described in wireless receiving
The signal of wireless access point, wireless access point manager can record the signal strength that the wireless access point receives, further includes:
First processor, second processor and control unit, the first processor is located on the train, at described second
Reason device is located under the train,
Described control unit is for setting first server for the first processor or setting the second processor to
Second server, and control the wireless access point manager and the signal strength is sent to the first server or second
Server；
Described control unit is set as the in the first request for receiving the terminal on the train, by the first processor
One server,
The first server is also used to the signal of the multiple terrestrial wireless access point and the train radio access point is strong
The terminal being sent on the train is spent,
Described control unit is set as the in the second request for receiving the terminal outside the train, by the second processor
Two servers,
The second server is also used to the signal of the multiple terrestrial wireless access point and the train radio access point is strong
Spend the terminal being sent to outside the train.
2. system according to claim 1, which is characterized in that the wireless access point manager is also used to according to the letter
The signal-to-noise ratio is sent to the first server or the second clothes by the signal-to-noise ratio of terrestrial wireless access point described in number Strength co-mputation
Business device,
The first server is used to the signal-to-noise ratio being sent to the terminal on the train, or
The second server is used for the terminal being sent to the signal-to-noise ratio outside the train.
3. system according to claim 1, which is characterized in that described control unit is receiving first request or the
When two requests, controls the wireless access point manager and open the function of sending wireless access point information.
4. system according to claim 1, which is characterized in that described control unit controls the wireless access point manager
The time interval for sending the signal strength to the first server or the second server is greater than transmission train information number
According to when interval.
5. a kind of train automatic controlling system, which is characterized in that including train-ground communication described in any one of Claims 1-4
Wireless DT System.
6. a kind of train-ground communication based on system described in any one of claims 1 to 4 is wireless road measuring method, which is characterized in that
Include:
S1 sets first server for first processor or sets second server for second processor；
S2 controls wireless access point manager for signal strength and is sent to first server or second server；
Wherein, signal of the train radio access point for terrestrial wireless access point described in wireless receiving, wireless access point pipe
Reason device can record the signal strength that the wireless access point receives；
The step S1 includes: to set for the first processor in the first request for receiving the terminal on train
One server；
The method also includes:
The first server sends the signal strength of the multiple terrestrial wireless access point and the train radio access point
Terminal on to the train；
The step S1 includes: that the second processor is arranged in the second request for receiving the terminal outside the train
For second server,
The method also includes:
The second server sends the signal strength of the multiple terrestrial wireless access point and the train radio access point
Terminal outside to the train.
7. according to the method described in claim 6, it is characterized in that, the step S1 further include: wireless access point manager root
The signal-to-noise ratio is sent to the first server by the signal-to-noise ratio that the terrestrial wireless access point is calculated according to the signal strength
Or second server,
The signal-to-noise ratio is sent to the terminal on the train by the first server, or
The signal-to-noise ratio is sent to the terminal outside the train by the second server.
8. according to the method described in claim 6, it is characterized by further comprising: receiving first request or second asking
When asking, controls the wireless access point manager and open the function of sending wireless access point information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510825131.8A CN105491595B (en) | 2015-11-24 | 2015-11-24 | Train-ground communication Wireless DT System and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510825131.8A CN105491595B (en) | 2015-11-24 | 2015-11-24 | Train-ground communication Wireless DT System and method |
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| Publication Number | Publication Date |
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| CN105491595A CN105491595A (en) | 2016-04-13 |
| CN105491595B true CN105491595B (en) | 2019-02-19 |
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| CN101574975A (en) * | 2009-06-03 | 2009-11-11 | 北京六捷科技有限公司 | Vehicle monitoring system based on CTCS-3 level train control system and terminal thereof |
| CN101778407A (en) * | 2010-02-05 | 2010-07-14 | 北京硕达科技有限公司 | GSM-R network Um interface monitor system |
| US20110009056A1 (en) * | 2009-04-21 | 2011-01-13 | Van Hanson | Radio communication systems with integrated location-based measurements for diagnostics and performance optimization |
| CN102118813A (en) * | 2011-01-21 | 2011-07-06 | 西安理工大学 | Train communication system and method based on AP (Assess Point) switching |
| CN102802189A (en) * | 2012-08-28 | 2012-11-28 | 南京泰通科技有限公司 | Device for realizing GSM-R (Global System for Mobile Communications for Railways) signal coverage and QOS (Quality of Service) condition monitoring |
-
2015
- 2015-11-24 CN CN201510825131.8A patent/CN105491595B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110009056A1 (en) * | 2009-04-21 | 2011-01-13 | Van Hanson | Radio communication systems with integrated location-based measurements for diagnostics and performance optimization |
| CN101574975A (en) * | 2009-06-03 | 2009-11-11 | 北京六捷科技有限公司 | Vehicle monitoring system based on CTCS-3 level train control system and terminal thereof |
| CN101778407A (en) * | 2010-02-05 | 2010-07-14 | 北京硕达科技有限公司 | GSM-R network Um interface monitor system |
| CN102118813A (en) * | 2011-01-21 | 2011-07-06 | 西安理工大学 | Train communication system and method based on AP (Assess Point) switching |
| CN102802189A (en) * | 2012-08-28 | 2012-11-28 | 南京泰通科技有限公司 | Device for realizing GSM-R (Global System for Mobile Communications for Railways) signal coverage and QOS (Quality of Service) condition monitoring |
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| CN105491595A (en) | 2016-04-13 |
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Address after: 100070 Beijing science and Technology Park of Fengtai District Seahawks Hospital No. 6 2, No. 3 (Park) Applicant after: TRAFFIC CONTROL TECHNOLOGY Co.,Ltd. Address before: 100070 Beijing science and Technology Park of Fengtai District Seahawks 6 School Road, No. 2, No. 3 international headquarters building Applicant before: TRAFFIC CONTROL TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20191206 Address after: 100070 Beijing science and Technology Park of Fengtai District Seahawks 6 School Road, No. 2, No. 3 international headquarters building Co-patentee after: Tianjin jiaokong Haohai Technology Co., Ltd Patentee after: TRAFFIC CONTROL TECHNOLOGY Co.,Ltd. Address before: 100070 Beijing science and Technology Park of Fengtai District Seahawks Hospital No. 6 2, No. 3 (Park) Patentee before: TRAFFIC CONTROL TECHNOLOGY Co.,Ltd. |
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Address after: 100070 Beijing science and Technology Park of Fengtai District Seahawks 6 School Road, No. 2, No. 3 international headquarters building Co-patentee after: Traffic control technology equipment Co.,Ltd. Patentee after: Traffic Control Technology Co.,Ltd. Address before: 100070 Beijing science and Technology Park of Fengtai District Seahawks 6 School Road, No. 2, No. 3 international headquarters building Co-patentee before: Tianjin jiaokong Haohai Technology Co.,Ltd. Patentee before: Traffic Control Technology Co.,Ltd. |
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