CN110733538A - Method and system for trains to autonomously identify states of front signal machines - Google Patents
Method and system for trains to autonomously identify states of front signal machines Download PDFInfo
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- CN110733538A CN110733538A CN201910974287.0A CN201910974287A CN110733538A CN 110733538 A CN110733538 A CN 110733538A CN 201910974287 A CN201910974287 A CN 201910974287A CN 110733538 A CN110733538 A CN 110733538A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000005192 partition Methods 0.000 claims abstract description 20
- 230000003137 locomotive effect Effects 0.000 claims description 14
- 230000000903 blocking effect Effects 0.000 claims description 9
- 238000010295 mobile communication Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 description 8
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
- B61L25/02—Indicating or recording positions or identities of vehicles or trains
- B61L25/025—Absolute localisation, e.g. providing geodetic coordinates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
- B61L23/08—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only
- B61L23/14—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only automatically operated
- B61L23/16—Track circuits specially adapted for section blocking
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Abstract
The invention relates to a method and a system for autonomously identifying states of front signal machines of trains, which are applied to an ITCS train control system, and the method comprises the steps of S1 downloading a track electronic map by a vehicle-mounted computer, acquiring real-time longitude and latitude coordinates of the train by navigation satellite positioning equipment of the train, S2 acquiring occupied block partition information of the train by the vehicle-mounted computer according to the track electronic map and the longitude and latitude coordinates of the train by adopting a map matching method, updating the track electronic map, S3 sending the occupied block partition information to a wireless block center by a vehicle-mounted radio station, and S4 sending the state information of the virtual signal machines which are nearest to the front end of the train on a train running line and do not pass the train on the vehicle-mounted radio station in real time after receiving the occupied block partition information, so as to realize the autonomous identification of the states of the front signal machines of the train, and update the track electronic map.
Description
Technical Field
The invention relates to the field of an ITCS (integrated circuit control system), in particular to a method and a system for autonomously identifying the state of a front signal machine by trains.
Background
An ITCS train control system, namely an enhanced train control system, is a train operation control system which integrates automatic blocking, station interlocking and train overspeed protection control in bodies and is adopted by a Qinghai-Tibet line signal system, a train of a conventional CTCS signal system is assembled, a vehicle-mounted device acquires a front blocking subarea idle state by acquiring information of a track circuit, the track circuit and a receiving antenna thereof are used, the initial investment of the system and the operation and maintenance cost in the future are increased, the maintainability of the system is reduced, the train operation state and the control information of the ITCS train control system are transmitted through a GSM-R, no track circuit is arranged on the whole line, the position of the train is determined by utilizing GPS information and vehicle speed sensor information and adopting a Kalman algorithm, the detection of the occupied track and the position of the train is realized, most of the station is not provided with a ground signal machine, no signal machine is arranged on the whole line, the train passes through the signal machine in the non-arranged area, the vehicle-mounted display is used as a driving certificate, a wireless blocking mode based on the GSM-R is adopted in the blocking mode, each station is provided with a wireless blocking RB.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a method and a system for autonomously identifying the state of a front signal by trains.
The purpose of the invention can be realized by the following technical scheme:
method for train to recognize front signal state, which is applied to ITCS train control system, includes:
s1: downloading a track electronic map by a vehicle-mounted computer, and acquiring real-time longitude and latitude coordinates of a train by navigation satellite positioning equipment of the train;
s2: the vehicle-mounted computer acquires the information of the occupied block partition of the train by adopting a map matching method according to the track electronic map and the longitude and latitude coordinates of the train, and updates the track electronic map;
s3: the vehicle-mounted radio station sends the information of occupying the block subarea to a radio block center;
s4: and after receiving the information of the occupied block subareas, the wireless block center sends the state information of the virtual signal machine which is closest to the front end of the locomotive on the train running line and does not pass through the virtual signal machine to the vehicle-mounted radio station in real time, so that the state of the signal machine in front of the train can be identified autonomously, and the track electronic map is updated.
And , the track electronic map comprises virtual signal machine state information, longitude and latitude information of the line and occupation block partition information of the train.
, the step S2 of updating the electronic track map includes updating the state information of the virtual signal machine which is closest to the rear end of the train and has passed through on the route on which the train runs;
step S4, the updating the track electronic map specifically includes: and updating the virtual signal state information of the virtual signal which is closest to the front end of the locomotive on the running line of the train and does not pass through.
, the navigation satellite positioning device includes a navigation satellite antenna and a navigation satellite receiver, and the step S1 specifically includes:
s101: receiving a navigation satellite signal through a navigation satellite antenna at the top of the locomotive;
s102: and calculating a navigation satellite signal through a navigation satellite receiver of the locomotive to obtain the longitude and latitude coordinates of the train.
system of the signal machine state in front of train autonomous recognition, be applied to ITCS train control system, its characterized in that includes:
the navigation satellite positioning unit is used for receiving a navigation satellite signal and calculating to obtain the longitude and latitude coordinates of the train according to the signal;
the vehicle-mounted computer is used for downloading and updating the track electronic map, and acquiring the information of the occupied block partition of the train by a map matching method according to the longitude and latitude coordinates of the train and the track electronic map;
the vehicle-mounted radio station is used for transmitting the information of the occupied block subarea and returning the real-time state of the virtual signal machine through the railway mobile communication network and the wireless block center;
and the wireless blocking center is used for receiving the information of the occupied blocking subarea of the train, sending the state of the virtual signal machine in front of the train to the vehicle-mounted radio station and closing the virtual signal machine behind the train.
And , the track electronic map comprises virtual signal machine state information, longitude and latitude information of the line and occupation block partition information of the train.
, the specific process of updating the track electronic map comprises:
after the on-board computer acquires the occupation block partition information of the train, the wireless block center updates the state information of the virtual signal machine which is closest to the rear end of the train and passes through the virtual signal machine on the running line of the train in real time;
and when the vehicle-mounted radio station receives the virtual signal machine state information of the virtual signal machine which is closest to the front end of the locomotive on the train running line and does not pass through and is sent by the radio block center, updating the virtual signal machine state information of the virtual signal machine in real time.
, the positioning unit comprises a navigation satellite antenna and a navigation satellite receiver, the navigation satellite antenna is used for receiving navigation satellite signals, and the navigation satellite receiver obtains the longitude and latitude coordinates of the train by calculating the navigation satellite signals.
Compared with the prior art, the invention has the following beneficial effects:
(1) the track electronic map adopted by the invention comprises information such as virtual teleseme state information, longitude and latitude information of a line, occupation block partition information of a train and the like, the track electronic map is automatically downloaded when the train is electrified, the track electronic map is updated after the track electronic map of the train and the virtual teleseme state information in front of the train are obtained, and train driving is guided by train drivers through the track electronic map, so that the manual participation degree is reduced, the track electronic map is more intuitive, and the operation efficiency and accuracy of the drivers are improved;
(2) the train is provided with the navigation satellite antenna and the navigation satellite receiver for acquiring the longitude and latitude coordinates of the train, the vehicle-mounted computer acquires the occupied block partition information of the train according to the downloaded track electronic map and the acquired longitude and latitude coordinates of the train, meanwhile, the block partition information is sent to the wireless block center through the vehicle-mounted radio station, and the wireless block center returns the state information of the virtual annunciator in front of the train to the vehicle-mounted radio station, so that the train can autonomously identify the state of the front annunciator, the system is simple in structure, the investment of equipment such as a track circuit, receiving equipment and the annunciator is reduced, and the initial investment and maintenance cost of the system are reduced;
(3) the invention autonomously identifies the state of the front annunciator through the vehicle-mounted equipment of the locomotive, lightens the tasks of the trackside equipment of the train, reduces the difficulty of the task processing process, and enhances the reliability and the service life of the equipment in the severe environment.
Drawings
FIG. 1 is a schematic diagram of a state of an identification signal machine of vehicle-mounted equipment when vehicle-ground communication is normal;
FIG. 2 is a schematic diagram of the state of an identification signal machine of the vehicle-mounted equipment when the vehicle-ground communication is abnormal;
fig. 3 is a flow chart of autonomous identification signaling when the vehicle-ground communication is normal;
fig. 4 is a flowchart of autonomous identification signaling when the vehicle-ground communication is abnormal.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Example
method for train to recognize front signal state, which is used in ITCS train control system, and is divided into two cases according to whether the wireless communication between train and ground is normal:
1) when the wireless communication between the train and the ground is normal, as shown in fig. 1 and 3, the method comprises the following steps:
s1: if the train is powered on at X1G, executing step S2; otherwise, the train is powered on and initialized, the on-board computer guides a driver to download or update the orbit electronic map, a navigation satellite antenna at the top of the locomotive receives a navigation satellite signal and transmits the navigation satellite signal to a navigation satellite receiver in a serial port communication mode, the navigation satellite receiver decodes the navigation satellite signal to obtain a navigation satellite antenna, namely the longitude and latitude coordinates of the train, and transmits the coordinates to the on-board computer;
the track electronic map comprises virtual signal machine state information, longitude and latitude information of a line and occupied block partition information of a train;
s2: the vehicle-mounted computer acquires the information of the occupied block subarea of the train by adopting a map matching method according to the track electronic map and the longitude and latitude coordinates, transmits the information to the vehicle-mounted radio station, and updates the state information of the virtual signal machine which is closest to the rear end of the train and passes through the line on which the train runs;
s3: the vehicle-mounted radio station sends the information of occupying the block subarea to a Radio Block Center (RBC);
s4: the RBC receives the information of the occupied block subareas and then sends the state information of the virtual signal machine which is nearest to the front end of the locomotive and does not pass through the train running line to the vehicle-mounted radio station in real time, the vehicle-mounted radio station transmits the information to the vehicle-mounted computer, the state of the signal machine in front of the train is automatically identified, whether the virtual signal machine in front of the train is opened or not is selected according to the actual condition of line resources, and meanwhile, the virtual signal machine which is nearest to the front end of the train and does not pass through the train on the running line is closed.
2) When the wireless communication between the train and the ground is abnormal, as shown in fig. 2 and 4, the method further comprises the following steps:
201) the on-board computer immediately outputs non-target braking, and the train driver reduces the train speed according to the deceleration not less than the specified deceleration;
202) the vehicle-mounted computer updates the track electronic map and sets a virtual signal machine in front of the train to be in a closed state;
203) and the vehicle-mounted computer judges whether the th signal machine in front is the signal machine for entering and exiting the station or not according to the longitude and latitude coordinates of the train and the track electronic map, if so, the vehicle-mounted computer executes the operation of parking and crossing, otherwise, the vehicle-mounted computer executes the operation of parking and slowing or parking and crossing according to the configuration file.
Example two
A system for autonomously identifying a state of a front traffic signal by a train corresponding to embodiment , which is applied to an ITCS train control system, includes:
the navigation satellite positioning unit comprises a navigation satellite antenna and a navigation satellite receiver, wherein the navigation satellite antenna is used for receiving a navigation satellite signal, and the navigation satellite receiver obtains the longitude and latitude coordinates of the train by calculating the navigation satellite signal;
and the vehicle-mounted computer is used for downloading and updating the track electronic map, and acquiring the occupied block partition information of the train by a map matching method according to the longitude and latitude coordinates of the train and the track electronic map, wherein the track electronic map comprises the state information of the virtual signal machine, the longitude and latitude information of the line and the occupied block partition information of the train.
The vehicle-mounted radio station is used for transmitting the information of the occupied block subarea and returning the real-time state of the virtual signal machine through the railway mobile communication network and the wireless block center;
and the RBC is used for receiving the information of the occupied block subarea of the train, sending the state of the virtual signal machine in front of the train to the vehicle-mounted radio station and closing the virtual signal machine behind the train.
The specific process of updating the track electronic map comprises the following steps:
after the on-board computer acquires the occupied block partition information of the train, updating the state information of the virtual signal machine which is closest to the rear end of the train and passes through the virtual signal machine on the running line of the train in real time;
and when the vehicle-mounted radio station receives the virtual signal machine state information of the virtual signal machine which is sent by the RBC, is closest to the front end of the locomotive on the train running line and does not pass through, updating the virtual signal machine state information of the virtual signal machine in real time.
The embodiment and the second embodiment provide a method and a system for trains to autonomously identify states of front annunciators, wherein a navigation satellite antenna and a navigation satellite receiver for acquiring longitude and latitude coordinates of the trains are arranged on the trains, an on-board computer acquires occupied block partition information of the trains according to a downloaded track electronic map and the acquired longitude and latitude coordinates of the trains, and simultaneously sends the block partition information to a radio block center through a vehicle-mounted radio station, and the radio block center returns the state information of the virtual annunciators in front of the trains to the vehicle-mounted radio station, so that the autonomous identification of the states of the front annunciators by the trains is realized.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (8)
1, method of train autonomous recognition front signal machine state, is applied to ITCS train control system, its characterized in that, includes:
s1: downloading a track electronic map by a vehicle-mounted computer, and acquiring real-time longitude and latitude coordinates of a train by navigation satellite positioning equipment of the train;
s2: the vehicle-mounted computer acquires the information of the occupied block partition of the train by adopting a map matching method according to the track electronic map and the longitude and latitude coordinates of the train, and updates the track electronic map;
s3: the vehicle-mounted radio station sends the information of occupying the block subarea to a radio block center;
s4: and after receiving the information of the occupied block subareas, the wireless block center sends the state information of the virtual signal machine which is closest to the front end of the locomotive on the train running line and does not pass through the virtual signal machine to the vehicle-mounted radio station in real time, so that the state of the signal machine in front of the train can be identified autonomously, and the track electronic map is updated.
2. The method of autonomous recognition of a front signal status by a train according to claim 1, wherein said track electronic map includes virtual signal status information, latitude and longitude information of a line, and occupancy block zone information of a train.
3. The method for autonomously identifying the state of the front traffic signal of trains according to claim 1, wherein the step S2 is to update the electronic map of the track, specifically, the virtual traffic signal state information of the virtual traffic signal which is closest to the rear end of the train and has passed through on the route on which the train travels;
step S4, the updating the track electronic map specifically includes: and updating the virtual signal state information of the virtual signal which is closest to the front end of the locomotive on the running line of the train and does not pass through.
4. The method for the train to autonomously identify the status of the front signal according to claim 1, wherein the navigation satellite positioning device includes a navigation satellite antenna and a navigation satellite receiver, and the step S1 specifically comprises:
s101: receiving a navigation satellite signal through a navigation satellite antenna at the top of the locomotive;
s102: and calculating a navigation satellite signal through a navigation satellite receiver of the locomotive to obtain the longitude and latitude coordinates of the train.
The system of kinds of train autonomous recognition front semaphore state is applied to ITCS train control system, its characterized in that includes:
the navigation satellite positioning unit is used for receiving a navigation satellite signal and calculating to obtain the longitude and latitude coordinates of the train according to the signal;
the vehicle-mounted computer is used for downloading and updating the track electronic map, and acquiring the information of the occupied block partition of the train by a map matching method according to the longitude and latitude coordinates of the train and the track electronic map;
the vehicle-mounted radio station is used for transmitting the information of the occupied block subarea and returning the real-time state of the virtual signal machine through the railway mobile communication network and the wireless block center;
and the wireless blocking center is used for receiving the information of the occupied blocking subarea of the train, sending the state of the virtual signal machine in front of the train to the vehicle-mounted radio station and closing the virtual signal machine behind the train.
6. The system of autonomous recognition of front signal status by train according to claim 5, wherein said track electronic map includes virtual signal status information, latitude and longitude information of line and occupied block zone information of train.
7. The system for autonomously identifying the state of the front signal by trains according to claim 5, wherein the specific process for updating the track electronic map is as follows:
after the on-board computer acquires the occupation block partition information of the train, the wireless block center updates the state information of the virtual signal machine which is closest to the rear end of the train and passes through the virtual signal machine on the running line of the train in real time;
and when the vehicle-mounted radio station receives the virtual signal machine state information of the virtual signal machine which is closest to the front end of the locomotive on the train running line and does not pass through and is sent by the radio block center, updating the virtual signal machine state information of the virtual signal machine in real time.
8. The system of for the train to autonomously recognize the state of the front signal, according to claim 5, wherein the navigational satellite positioning unit comprises a navigational satellite antenna for receiving navigational satellite signals and a navigational satellite receiver for obtaining the longitude and latitude coordinates of the train by calculating the navigational satellite signals.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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