CN114104040A - Train positioning system - Google Patents
Train positioning system Download PDFInfo
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- CN114104040A CN114104040A CN202010881523.7A CN202010881523A CN114104040A CN 114104040 A CN114104040 A CN 114104040A CN 202010881523 A CN202010881523 A CN 202010881523A CN 114104040 A CN114104040 A CN 114104040A
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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
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Abstract
The embodiment of the application provides a train positioning system. This train positioning system includes: the system comprises an axle counting sensor, a vehicle receiver connected with the axle counting sensor, and an on-board controller connected with the vehicle receiver; the axle counting sensor is arranged on the track, and the vehicle receiver and the vehicle-mounted controller are arranged in the train; the vehicle receiver is used for generating a sensing signal when sensing the axle counting sensor and sending the sensing signal to the vehicle-mounted controller; and the vehicle-mounted controller is used for determining the position of the train according to the sensing signal. In the embodiment of the application, the position of the train can be determined through the axle counting sensor, the vehicle receiver and the vehicle-mounted controller, the use of a transponder is avoided, the cost can be saved, and the cost of the train positioning system is lower. In addition, since the use of the transponder is avoided, a space for disposing the transponder on the track can be saved.
Description
Technical Field
The application relates to the technical field of rail transit, in particular to a train positioning system.
Background
With the progress of science and technology, trains, subways, light rails and the like gradually become common transportation means. Typically, in these vehicles, a train positioning system is provided to ensure the safety of train travel.
In the related art, the train positioning system may include a transponder, an axle counting sensor, a ground controller, a transponder antenna, a transponder modulator, and an onboard controller, wherein the axle counting sensor and the transponder are mounted on a track, the axle counting sensor is electrically connected to the ground controller, and the transponder antenna, the transponder modulator, and the onboard controller are mounted in a train.
In the process of implementing the present application, the inventors found that at least the following problems exist in the related art: the transponders take up more space on the track.
Content of application
The embodiment of the application provides a train positioning system, which can solve the problem that transponders occupy more space on a track in the related art.
In order to solve the technical problem, the present application is implemented as follows:
the embodiment of the application provides a train positioning system, includes: the system comprises an axle counting sensor, a vehicle receiver connected with the axle counting sensor, and an on-board controller connected with the vehicle receiver;
the axle counting sensor is arranged on the track, and the vehicle receiver and the vehicle-mounted controller are arranged on the train;
the vehicle receiver is used for generating a sensing signal when sensing the axle counting sensor and sending the sensing signal to the vehicle-mounted controller;
and the vehicle-mounted controller is used for determining the position of the train according to the induction signal.
Optionally, the vehicle receiver is configured to generate a sensing signal when sensing the axle counting sensor, and send the sensing signal to the vehicle-mounted controller, and includes:
the axle counting sensor is used for generating a magnetic field, and the vehicle receiver is used for generating the induction signal and sending the induction signal to the vehicle-mounted controller when cutting the magnetic field.
Optionally, the vehicle receiver includes an axle counting sensing unit and an axle counting modulating unit respectively connected to the axle counting sensing unit and the vehicle-mounted controller;
the axle counting sensing unit is used for generating an analog sensing signal when sensing the axle counting sensor;
the axle counting modulation unit is used for converting the analog induction signal into a digital induction signal and sending the digital induction signal to the vehicle-mounted controller.
Optionally, the axle counting sensing unit includes a sensing antenna, a processing unit and an interface unit;
the induction antenna is electrically connected with the processing unit, the processing unit is connected with the interface unit, and the interface unit is electrically connected with the axle counting modulation unit;
the sensing antenna is used for generating the analog sensing signal when sensing the axle counting sensor, and the processing unit is used for filtering the analog sensing signal.
Optionally, a closed circuit is disposed in the induction antenna, and the closed circuit is configured to generate the analog induction signal when cutting the magnetic field generated by the axle counting sensor.
Optionally, the axle counting modulation unit includes a first modulation unit, and the first modulation unit includes a first receiving subunit, a first modulation subunit, and a first communication subunit;
the first receiving subunit is electrically connected with the first modulating subunit, and the first modulating subunit is electrically connected with the first communication subunit; the first receiving subunit is electrically connected with the axle counting sensing unit, and the first communication subunit is electrically connected with the vehicle-mounted controller;
the first receiving subunit is configured to receive the analog sensing signal, the first modulating subunit is configured to convert the analog sensing signal into the digital sensing signal, and the first communicating subunit is configured to send the digital sensing signal to the onboard controller.
Optionally, the first modulation unit further includes a first power supply subunit;
the first power supply subunit is electrically connected with the first receiving subunit, the first modulation subunit and the first communication subunit respectively, and the first power supply subunit is used for providing electric signals for the first receiving subunit, the first modulation subunit and the first communication subunit.
Optionally, the first modulation unit further includes a first power supply recording unit;
the first power supply recording unit is electrically connected with the first power supply subunit and is used for recording the electric signals provided by the first power supply subunit.
Optionally, the axle counting modulation unit further includes a second modulation unit, where the second modulation unit includes a second receiving subunit, a second modulation subunit, and a second communication subunit;
the second receiving subunit is electrically connected with the second modulating subunit, and the second modulating subunit is electrically connected with the second communication subunit; the second receiving subunit is electrically connected with the axle counting sensing unit, and the second communication subunit is electrically connected with the vehicle-mounted controller;
the second receiving subunit is configured to receive the analog sensing signal, the second modulating subunit is configured to convert the analog sensing signal into the digital sensing signal, and the second communicating subunit is configured to send the digital sensing signal to the onboard controller.
Optionally, the sensing signal is used to indicate identification number information of the axle counting sensor, and the determining, by the on-board controller, the position of the train according to the sensing signal includes:
and the vehicle-mounted controller determines the position of the train according to the identification number information of the axle counting sensor.
In the embodiment of the application, the axle counting sensor is arranged on the track, the vehicle receiver and the vehicle-mounted controller are arranged on the train, the vehicle receiver is used for generating a sensing signal when sensing the axle counting sensor and sending the sensing signal to the vehicle-mounted controller, and the vehicle-mounted controller can determine the position of the train according to the sensing signal, so that the position of the train can be determined through the axle counting sensor, the vehicle receiver and the vehicle-mounted controller, the use of a transponder is avoided, the cost can be saved, and the cost of the train positioning system is low. In addition, since the use of the transponder is avoided, a space for disposing the transponder on the track can be saved.
Drawings
FIG. 1 is a schematic diagram of a train positioning system provided by an embodiment of the present application;
fig. 2 is a schematic diagram of another train positioning system provided in the embodiment of the present application.
Reference numerals:
10: an axle counting sensor; 20: a vehicle receiver; 30: a vehicle-mounted controller; 40: a ground controller; 21: an axle counting sensing unit; 22: an axis-counting modulation unit; 31: a first controller; 32: a second controller; 211: an inductive antenna; 212: a processing unit; 213: an interface unit; 214: a power supply unit; 221: a first modulation unit; 222: a second modulation unit; 2211: a first receiving subunit; 2212: a first modulation subunit; 2213: a first communication subunit; 2214: a first power supply subunit; 2215: a first power supply recording unit; 2221: a second receiving subunit; 2222: a second modulation subunit; 2223: a second communication subunit; 2224: a second power supply subunit; 2225: a second power source recording unit.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Before specifically describing the train positioning system provided by the embodiment of the present application, an application scenario of the train positioning system provided by the embodiment of the present application is specifically described: in the related art, the train positioning system may include a transponder, an axle counting sensor, a ground controller, a transponder antenna, a transponder modulator, and an onboard controller, wherein the axle counting sensor and the transponder are mounted on a track, the axle counting sensor is electrically connected to the ground controller, and the transponder antenna, the transponder modulator, and the onboard controller are mounted in a train. And the ground controller is connected with the vehicle-mounted controller.
When the train runs on the track and passes through the axle counting sensor, the axle counting sensor can sense the number of wheels of the train and send signals to the ground controller, and the ground controller determines the position of the train according to the signals sent by the axle counting sensor. When the train runs on the track and passes through the transponder, the transponder sends a signal to the response antenna, the response antenna sends the signal to the response modulator, the response modulator sends the modulated signal to the vehicle-mounted controller, and the vehicle-mounted controller determines the position of the train according to the modulated signal. The ground controller then communicates with the on-board controller to determine whether the train currently needs to change speed and the direction of travel of the train needs to be changed. That is, in the related art, the number of wheels of the train is determined by the axle counting sensor, and the position of the train is determined by the transponder, resulting in a high cost of the train positioning system. In addition, the transponder is arranged on the track, and occupies more space of the track.
As shown in fig. 1, the train positioning system includes: an axle counting sensor 10, a vehicle receiver 20 connected to the axle counting sensor 10, and an onboard controller 30 connected to the vehicle receiver 20.
The axle counting sensor 10 is disposed on a track, and the vehicle receiver 20 and the on-board controller 30 are disposed on a train. The vehicle receiver 20 is configured to generate a sensing signal when sensing the axle counting sensor 10, and transmit the sensing signal to the on-board controller 30. The onboard controller 30 is used to determine the location of the train based on the sensed signal.
In the embodiment of the present application, the axle counting sensor 10 is disposed on a track, the vehicle receiver 20 and the vehicle-mounted controller 30 are disposed on a train, the vehicle receiver 20 is configured to generate a sensing signal when sensing the axle counting sensor 10, and transmit the sensing signal to the vehicle-mounted controller 30, the vehicle-mounted controller 30 can determine a position of the train according to the sensing signal, so that the position of the train can be determined through the axle counting sensor 10, the vehicle receiver 20 and the vehicle-mounted controller 30, and a transponder is avoided, thereby saving cost, and lowering the cost of the train positioning system. In addition, since the use of the transponder is avoided, a space for disposing the transponder on the track can be saved.
In addition, in the embodiment of the present application, when a train passes through the axle counting sensor 10, the axle counting sensor 10 may further determine to record the number of wheels passing through the axle counting sensor 10, and then determine whether the track on which the train is currently running is in an occupied state or an idle state according to the number of wheels.
In addition, in this application embodiment, the vehicle receiver may be disposed at the bottom of the train, and of course, the vehicle receiver may also be disposed at a side of the train, and as for a location where the vehicle receiver is disposed on the train, this application embodiment is not limited herein.
In addition, in some embodiments, the vehicle receiver 20 is configured to generate a sensing signal when sensing the axle counting sensor 10 and transmit the sensing signal to the on-board controller 30, and includes: the axle counting sensor 10 is used for generating a magnetic field, and the vehicle receiver 20 is used for generating a sensing signal when cutting the magnetic field and sending the sensing signal to the vehicle-mounted controller 30.
In the embodiment of the present application, the axle counter sensor 10 can generate a magnetic field, and the vehicle receiver 20 disposed on the train moves along with the train during the running of the train. When a train passes by the axle counting sensor 10, the vehicle receiver 20 may cut the magnetic field generated by the axle counting sensor 10, so that the axle counting sensor 10 may generate a current, i.e., an analog induction signal, and the axle counting sensor 10 may transmit the analog induction signal to the vehicle receiver 20.
Additionally, in some embodiments, the vehicle receiver 20 may include an axle counting sensing unit 21, and an axle counting modulation unit 22 coupled to the axle counting sensing unit 21 and the onboard controller 30, respectively. The axle counting sensing unit 21 is used for generating an analog sensing signal when sensing the axle counting sensor 10. The axle counting modulation unit 22 is used for converting the analog sensing signal into a digital sensing signal and transmitting the digital sensing signal to the vehicle-mounted controller 30.
Since the vehicle receiver 20 includes the axle counting sensing unit 21 and the axle counting modulation unit 22 respectively connected to the axle counting sensing unit 21 and the on-board controller 30, when the axle counting sensing unit 21 senses the axle counting sensor 10 to generate an analog sensing signal, the axle counting sensing unit 21 may transmit the analog sensing signal to the axle counting modulation unit 22. The axle counting modulation unit 22 can convert the analog sensing signal into a digital sensing signal, and then the axle counting modulation unit 22 sends the digital sensing signal to the onboard controller 30, and the controller determines the position of the train according to the digital sensing signal after receiving the digital sensing signal. That is, when the vehicle receiver 20 includes the axle counting sensing unit 21 and the axle counting modulating unit 22 respectively connected to the axle counting sensing unit 21 and the on-board controller 30, the axle counting sensing unit 21 may transmit the generated analog sensing signal to the axle counting modulating unit 22, so that the axle counting modulating unit 22 converts the analog sensing signal into a digital sensing signal recognizable by the on-board controller 30, and the on-board controller 30 determines the position of the train according to the analog sensing signal generated by the axle counting sensing unit.
It should be noted that, when the vehicle receiver 20 includes the axle counting sensing unit 21 and the axle counting modulating unit 22 respectively connected to the axle counting sensing unit 21 and the on-board controller 30, when a train passes through the axle counting sensor 10, the axle counting sensing unit 21 cuts the magnetic field generated by the axle counting sensor 10 to generate an analog sensing signal.
In addition, in some embodiments, as shown in fig. 1, the axle counting sensing unit 21 may include a sensing antenna 211, a processing unit 212, and an interface unit 213. The sensing antenna 211 is electrically connected with the processing unit 212, the processing unit 212 is connected with the interface unit 213, and the interface unit 213 is electrically connected with the axle counting modulation unit 22. The sensing antenna 211 is used for generating an analog sensing signal when sensing the axle counting sensor 10, and the processing unit 212 is used for filtering the analog sensing signal.
Since the sensing antenna 211 is electrically connected to the processing unit 212, when the sensing antenna 211 generates an analog sensing signal while sensing the axis-counting sensor 10, the sensing antenna 211 can transmit the analog sensing signal to the processing unit 212. Since the analog sensing signal generated by the sensing antenna 211 may include an interference signal, when the processing unit 212 receives the analog sensing signal generated by the sensing antenna 211, the processing unit 212 may filter the received analog sensing signal to remove the interference signal. After the processing unit 212 filters the analog sensing signal, the processing unit 212 may transmit the filtered analog sensing signal to the interface unit 213. Because the interface unit 213 is electrically connected to the axle counting modulation unit 22, the interface unit 213 can send the filtered analog sensing signal to the axle counting modulation unit 22, so that the axle counting modulation unit 22 can convert the filtered analog sensing signal into a digital sensing signal, and the converted digital signal is more accurate, and further, the position of the train determined by the onboard controller 30 according to the digital sensing signal is more accurate.
It should be noted that the processing unit 212 may perform filtering processing on the analog sensing signal. Here, the analog induction signal generated by the induction antenna 211 is generally a waveform signal, i.e. a current, and the axle counting sensor 10 is disposed on a track, and metal such as the track may generate a weak magnetic field due to the influence of the axle counting sensor 10, so that the induction antenna 211 may have an interference signal in the analog induction signal generated by the cutting magnetic field, and therefore, a filtering process needs to be performed on the analog induction signal generated by the induction antenna 211.
In addition, in the embodiment of the present application, when the axle counting sensing unit 21 may include the sensing antenna 211, the processing unit 212, and the interface unit 213, at this time, the sensing antenna 211 may cut the magnetic field generated by the axle counting sensor 10 when the train passes by the axle counting sensor 10. I.e. the induction antenna 211 has the function of cutting the magnetic field.
In the related art, the positioning system includes a transponder, a train is provided with a transponder antenna, the transponder can transmit a high frequency signal, when the train passes through the transponder, the transponder antenna receives the high frequency signal transmitted by the transponder to determine the position of the train, and when the number of transponders is generally large on the track, the cost of the positioning system is high. In the embodiment of the present application, the magnetic field generated by the axle counting sensor 10 is cut by the sensing antenna 211, so that the sensing antenna 211 can generate an analog sensing signal and transmit the analog sensing signal to the processing unit 212, thereby avoiding the use of a transponder and reducing the cost of the positioning system.
In addition, in some embodiments, a closed circuit may be disposed in the sensing antenna 211, and the closed circuit is used for generating an analog sensing signal when the axle counting sensor 10 is sensed.
Because the sensing antenna 211 is provided with a closed circuit, when the sensing antenna 211 moves along with the train and the closed circuit passes through the magnetic field of the axle counting sensor 10, at this time, due to the electromagnetic induction effect, a current, i.e., an analog sensing signal, is generated in the closed circuit. That is, by providing a closed circuit in the sensing antenna 211, it may be convenient for the sensing antenna 211 to generate an analog sensing signal.
Additionally, in some embodiments, as shown in fig. 1, the axle counting sensing unit 21 may further include a power supply unit 214. The power supply unit 214 is electrically connected to the sensing antenna 211 and the processing unit 212, respectively, and the power supply unit 214 is configured to provide electrical signals to the sensing antenna 211 and the processing unit 212.
When the axle counting sensing unit 21 comprises the power supply unit 214, and the power supply unit 214 is electrically connected to the sensing antenna 211 and the processing unit 212, respectively, the power supply unit 214 can provide an electric signal to the sensing unit and the processing unit 212, so that the sensing antenna 211 and the processing unit 212 can operate continuously. That is, the power supply unit 214 may be provided to allow the inductive antenna 211 and the processing unit 212 to continuously operate.
It should be noted that the power supply unit 214 may be a battery, and of course, the power supply unit 214 may also be of other types, and the embodiment of the present application is not limited herein.
In addition, in some embodiments, as shown in fig. 1, the axis counting modulation unit 22 may include a first modulation unit 221, and the first modulation unit 221 may include a first receiving subunit 2211, a first modulation subunit 2212, and a first communication subunit 2213. The first receiving sub-unit 2211 is electrically connected to the first modulating sub-unit 2212, and the first modulating sub-unit 2212 is electrically connected to the first communicating sub-unit 2213; the first receiving sub-unit 2211 is electrically connected to the axle counting sensing unit 21, and the first communication sub-unit 2213 is electrically connected to the onboard controller 30. The first receiving sub-unit 2211 is configured to receive an analog sensing signal, the first modulating sub-unit 2212 is configured to convert the analog sensing signal into a digital sensing signal, and the first communication unit is configured to transmit the digital sensing signal to the onboard controller 30.
Since the axis-counting modulation unit 22 includes the first modulation unit 221, the first modulation unit 221 includes the first receiving sub-unit 2211, the first modulation sub-unit 2212 and the first communication sub-unit 2213, and the first receiving sub-unit 2211 is electrically connected with the first sub-unit, the first modulating sub-unit 2212 is electrically connected with the first communication sub-unit 2213, the first receiving sub-unit 2211 is electrically connected with the axle counting sensing unit 21, the first communication sub-unit 2213 is electrically connected with the vehicle-mounted controller 30, therefore, the axle counting sensing unit 21 can transmit the analog sensing signal to the first receiving sub-unit 2211, the first receiving sub-unit 2211 transmits the analog sensing signal to the first modulating sub-unit 2212, the first modulating sub-unit 2212 converts the analog sensing signal into a digital sensing signal, and the first modulation sub-unit 2212 transmits the digital sensing signal to the first communication sub-unit 2213, and the first communication sub-unit 2213 transmits the digital signal to the vehicle-mounted controller 30. That is, the first modulation subunit 2212 can convert the analog sensing signal into a digital sensing signal, and then the first communication subunit 2213 transmits the digital sensing signal to the onboard controller 30, so that the onboard controller 30 can recognize the digital sensing signal and determine the position of the train according to the digital sensing signal.
It should be noted that, when the axle counting sensing unit 21 includes the interface unit 213, the connection between the first receiving sub-unit 2211 and the axle counting sensing unit 21 means that the first receiving sub-unit 2211 is connected to the interface unit 213.
In addition, in this embodiment, when the axis counting sensing unit 21 includes the sensing antenna 211, the processing unit 212, and the interface unit 213, the analog sensing signal filtered by the processing unit 212 may be received by the first receiving sub-unit 2211.
In addition, in some embodiments, as shown in fig. 1, the first modulation unit 221 may further include a first power supply subunit 2214. The first power supply sub-unit 2214 is electrically connected to the first receiving sub-unit 2211, the first modulation sub-unit 2212 and the first communication sub-unit 2213, respectively, and the first power supply sub-unit 2214 is used for providing electrical signals to the first receiving sub-unit 2211, the first modulation sub-unit 2212 and the first communication sub-unit 2213.
When the first modulation unit 221 includes the first power subunit 2214, and the first power subunit 2214 is electrically connected to the first receiving subunit 2211, the first modulation subunit 2212, and the first communication subunit 2213, respectively, the first power subunit 2214 may provide electrical signals to the first receiving subunit 2211, the first modulation subunit 2212, and the first communication subunit 2213, so that the first receiving subunit 2211, the first modulation subunit 2212, and the first communication subunit 2213 may operate continuously, and thus the operation time of the first modulation unit 221 may be longer.
It should be noted that the first power supply subunit 2214 may be a battery, and of course, the first power supply subunit 2214 may also be of other types, and the embodiment of the present application is not limited herein.
In addition, in some embodiments, as shown in fig. 1, the first modulation unit 221 may further include a first power recording unit 2215. The first power source recording unit 2215 is electrically connected to the first power source sub-unit 2214, and the first power source recording unit 2215 is used for recording the electrical signal provided by the first power source sub-unit 2214.
When the first modulation unit 221 includes the first power recording unit 2215, and the first power recording unit 2215 is connected to the first power subunit 2214, at this time, the first power recording unit 2215 may record the electrical signals provided by the first power subunit 2214 to the first receiving subunit 2211, the first modulation subunit 2212 and the first communication subunit 2213, so that the current remaining power of the first power subunit 2214 may be determined according to the first power recording unit 2215, and the power used by the first receiving subunit 2211, the first modulation subunit 2212 and the first communication subunit 2213 may also be determined according to the first power recording unit 2215.
It should be noted that the electrical signal may indicate electrical energy. At this time, the electrical signal provided by the first power supply subunit 2214 recorded by the first power supply recording unit 2215 may be: the sum of the power supplied to the first receiving sub-unit 2211, the first modulating sub-unit 2212, and the first communicating sub-unit 2213. Of course, the electrical signal provided by the first power supply subunit 2214 recorded by the first power supply recording unit 2215 can also be: power supplied to the first receiving sub-unit 2211, power supplied to the first modulating sub-unit 2212, and power supplied to the first communication unit. The embodiments of the present application are not limited herein.
In addition, in some embodiments, as shown in fig. 1, the axle counting modulation unit 22 may further include a second modulation unit 222, and the second modulation unit 222 includes a second receiving subunit 2221, a second modulation subunit 2222, and a second communication subunit 2223. The second receiving subunit 2221 is electrically connected to the second modulating subunit 2222, and the second modulating subunit 2222 is electrically connected to the second communicating subunit 2223; the second receiving subunit 2221 is electrically connected to the axle counting sensing unit 21, and the second communicating subunit 2223 is electrically connected to the vehicle-mounted controller 30. The second receiving subunit 2221 is configured to receive an analog sensing signal, the second modulating subunit 2222 is configured to convert the analog sensing signal into a digital sensing signal, and the second communication unit is configured to send the digital sensing signal to the onboard controller 30.
Since the axis-counting modulation unit 22 includes the second modulation unit 222, the second modulation unit 222 includes the second receiving subunit 2221, the second modulation subunit 2222 and the second communication subunit 2223, the second receiving subunit 2221 is electrically connected to the second subunit, the second modulating subunit 2222 is electrically connected to the second communicating subunit 2223, the second receiving subunit 2221 is electrically connected to the axle counting sensing unit 21, the second communicating subunit 2223 is electrically connected to the onboard controller 30, therefore, the axle counting sensing unit 21 can transmit the analog sensing signal to the second receiving subunit 2221, the second receiving subunit 2221 transmits the analog sensing signal to the second modulating subunit 2222, the second modulating subunit 2222 converts the analog sensing signal into a digital sensing signal, and the second modulation subunit 2222 transmits the digital sensing signal to the second communication subunit 2223, and the second communication subunit 2223 transmits the digital signal to the on-board controller 30. That is, the second modulation subunit 2222 may convert the analog sensing signal into a digital sensing signal, and then the second communication subunit 2223 may transmit the digital sensing signal to the onboard controller 30, so that the onboard controller 30 may recognize the digital sensing signal and determine the position of the train according to the digital sensing signal.
In addition, when the axle counting modulation unit 22 includes the second modulation unit 222, under the condition that the first modulation unit 221 fails, the second modulation subunit 2222 in the second modulation unit 222 can still convert the analog sensing signal into the digital sensing signal, so that the axle counting modulation unit 22 can still play a role in converting the analog sensing signal. That is, the second modulation unit 222 can function as a backup, so that the use effect of the axle counting modulation unit 22 is better.
It should be noted that, when the axle counting sensing unit 21 includes the interface unit 213, the second receiving subunit 2221 is connected to the axle counting sensing unit 21, which means that the second receiving subunit 2221 is connected to the interface unit 213.
In addition, in the embodiment of the present application, when the axle counting sensing unit 21 includes the sensing antenna 211, the processing unit 212 and the interface unit 213, the second receiving subunit 2221 may receive the analog sensing signal after being filtered by the processing unit 212.
In addition, in some embodiments, as shown in fig. 1, the second modulation unit 222 may further include a second power supply subunit 2224. The second power subunit 2224 is electrically connected to the second receiving subunit 2221, the second modulating subunit 2222 and the second communicating subunit 2223, respectively, and the second power subunit 2224 is configured to provide electrical signals to the second receiving subunit 2221, the second modulating subunit 2222 and the second communicating subunit 2223.
When the second modulation unit 222 includes the second power subunit 2224, and the second power subunit 2224 is electrically connected to the second receiving subunit 2221, the second modulation subunit 2222, and the second communication subunit 2223, respectively, the second power subunit 2224 can provide electrical signals to the second receiving subunit 2221, the second modulation subunit 2222, and the second communication subunit 2223, so that the second receiving subunit 2221, the second modulation subunit 2222, and the second communication subunit 2223 can operate continuously, and thus the time that the second modulation unit 222 can operate is longer.
It should be noted that the second power subunit 2224 may be a battery, and certainly, the second power subunit 2224 may also be of other types, which is not limited herein in this embodiment of the application.
In addition, in some embodiments, as shown in fig. 1, the second modulation unit 222 may further include a second power recording unit 2225. The second power source recording unit 2225 is electrically connected to the second power source subunit 2224, and the second power source recording unit 2225 is configured to record the electrical signals provided by the second power source subunit 2224.
When the second modulation unit 222 includes the second power source recording unit 2225, and the second power source recording unit 2225 is connected to the second power source subunit 2224, at this time, the second power source recording unit 2225 may record the electrical signals provided by the second power source subunit 2224 to the second receiving subunit 2221, the second modulation subunit 2222 and the second communication subunit 2223, so that the remaining electrical energy of the second power source subunit 2224 can be determined according to the second power source recording unit 2225, and the electrical energy used by the second receiving subunit 2221, the second modulation subunit 2222 and the second communication subunit 2223 can also be determined according to the second power source recording unit 2225.
In addition, in the embodiment of the present application, as shown in fig. 1, the on-board controller 30 may include a first controller 31 and a second controller 32, and the axle counting modulation unit 22 is connected to the first controller 31 and the second controller 32, respectively.
When the on-board controller 30 includes the first controller 31 and the second controller 32, and the axle counting modulation unit 22 is connected to the first controller 31 and the second controller 32, respectively, when the first controller 31 fails, the axle counting modulation unit 22 may send a digital sensing signal to the second controller 32, so that the second controller 32 determines the position of the train according to the digital sensing signal. When the second controller 32 malfunctions, at this time, the axle counting modulation unit 22 may transmit the digital sensing signal to the first controller 31, so that the first controller 31 determines the position of the train according to the digital sensing signal. That is, when the on-vehicle controller 30 includes the first controller 31 and the second controller 32, it is possible to avoid a problem that one of the controllers malfunctions so that the on-vehicle controller 30 cannot be used.
It should be noted that, when the axle counting modulation unit 22 includes the first modulation unit 221 and the second modulation unit 222, and the on-board controller 30 includes the first controller 31 and the second controller 32, at this time, the first communication unit in the first modulation unit 221 may be connected to the first controller 31 and the second controller 32, respectively, and the second communication unit in the second modulation unit 222 may be connected to the first controller 31 and the second controller 32, respectively.
Additionally, in some embodiments, the sensing signal is indicative of identification number information of the axle counting sensor 10, and the on-board controller 30 determining the location of the train from the sensing signal includes the on-board controller 30 determining the location of the train from the identification number (ID) information of the axle counting sensor 10.
The implementation manner of the on-board controller 30 determining the position of the train according to the id number information of the axle counting sensor 10 may be: the on-board controller 30 determines the position of the train based on the correspondence between the identification number information of the axle counting sensor 10 and the position point on the track. The correspondence between the identification number information of the axle counting sensor 10 and the position point on the track may be: the identification number of one axle counting sensor 10 corresponds to one position point on the track.
At this time, after the identification number information of the axle counting sensor 10 is determined, the on-board controller 30 may find the position point on the track according to the correspondence between the identification number information of the axle counting sensor 10 and the position point on the track, and further determine the position of the train.
It should be noted that when the axle counting sensors 10 are different, the magnetic fields generated by different axle counting sensors 10 may also be different, so that when the vehicle receiver 20 senses different axle counting sensors 10, the sensing signals generated may also be different, and therefore, the sensing signals may indicate the identification number information of the axle counting sensors 10.
In addition, in the embodiment of the present application, the on-board controller 30 may obtain the correspondence between the identification number information of the axle counting sensor 10 and the position point on the track from the database of the train.
In addition, in the embodiment of the present application, as shown in fig. 2, the train positioning system may further include a ground controller 40, the ground controller 40 is connected to the axle counting sensor 10, and the ground controller is connected to the onboard controller 30.
When the train positioning system comprises the ground controller 40, the ground controller 40 is connected with the axle counting sensor 10, at this time, when the axle counting sensor 10 senses the train, the axle counting sensor 10 can send a signal to the ground controller 40, and the ground controller 40 determines the position of the train according to the signal sent by the axle counting sensor 10. When the axle counting sensing unit 21 senses the axle counting sensor 10, an analog sensing signal is generated and sent to the axle counting modulation unit 22, the axle counting modulation unit 22 converts the analog sensing signal into a digital sensing signal and sends the digital sensing signal to the on-board controller 30, and the on-board controller 30 determines the position of the train according to the digital sensing signal. The onboard controller 30 then communicates with the ground controller 40 to determine whether the current speed and direction of travel of the train needs to be changed.
Wherein, the ground controller 40 can determine whether the track is occupied or blocked in the advancing direction of the train on the track, and at this time, after the onboard controller 30 determines the position of the train, and the onboard controller 30 is connected with the ground controller 40, therefore, the onboard controller 30 can control the running speed and/or the running direction of the train according to the state of the track in the advancing direction of the train determined by the ground controller 40. When the track in the advancing direction of the train is in an occupied state, namely, other trains exist on the track in the advancing direction of the train, at the moment, the train controller can control the running speed of the train and even control the running direction of the train.
In the embodiment of the present application, the axle counting sensor 10 is disposed on a track, the vehicle receiver 20 and the vehicle-mounted controller 30 are disposed on a train, the vehicle receiver 20 is configured to generate a sensing signal when sensing the axle counting sensor 10, and transmit the sensing signal to the vehicle-mounted controller 30, the vehicle-mounted controller 30 can determine a position of the train according to the sensing signal, so that the position of the train can be determined through the axle counting sensor 10, the vehicle receiver 20 and the vehicle-mounted controller 30, and a transponder is avoided, thereby saving cost, and lowering the cost of the train positioning system. In addition, since the use of the transponder is avoided, a space for disposing the transponder on the track can be saved.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
While alternative embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including alternative embodiments and all such alterations and modifications as fall within the true scope of the embodiments of the application.
Finally, it should also be noted that, in this document, relational terms such as first and second, and the like may be used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or terminal apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or terminal apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of additional like elements in the article or terminal device comprising the element.
The technical solutions provided in the present application are described in detail above, and the principles and embodiments of the present application are described herein by using specific examples, and meanwhile, for a person of ordinary skill in the art, according to the principles and implementation manners of the present application, changes may be made in the specific embodiments and application ranges.
Claims (10)
1. A train positioning system, comprising: the system comprises an axle counting sensor, a vehicle receiver connected with the axle counting sensor, and an on-board controller connected with the vehicle receiver;
the axle counting sensor is arranged on the track, and the vehicle receiver and the vehicle-mounted controller are arranged on the train;
the vehicle receiver is used for generating a sensing signal when sensing the axle counting sensor and sending the sensing signal to the vehicle-mounted controller;
and the vehicle-mounted controller is used for determining the position of the train according to the induction signal.
2. The train positioning system of claim 1, wherein the vehicle receiver is configured to generate a sensing signal when the axle counting sensor is sensed and to transmit the sensing signal to the onboard controller, comprising:
the axle counting sensor is used for generating a magnetic field, and the vehicle receiver is used for generating the induction signal and sending the induction signal to the vehicle-mounted controller when cutting the magnetic field.
3. The train positioning system of claim 1, wherein the vehicle receiver comprises an axle counting sensing unit and an axle counting modulation unit respectively connected to the axle counting sensing unit and the onboard controller;
the axle counting sensing unit is used for generating an analog sensing signal when sensing the axle counting sensor;
the axle counting modulation unit is used for converting the analog induction signal into a digital induction signal and sending the digital induction signal to the vehicle-mounted controller.
4. The train positioning system of claim 3, wherein the axle counting sensing unit comprises a sensing antenna, a processing unit, and an interface unit;
the induction antenna is electrically connected with the processing unit, the processing unit is connected with the interface unit, and the interface unit is electrically connected with the axle counting modulation unit;
the sensing antenna is used for generating the analog sensing signal when sensing the axle counting sensor, and the processing unit is used for filtering the analog sensing signal.
5. The train positioning system of claim 4, wherein the inductive antenna has a closed circuit disposed therein for generating the analog sensing signal when the axle counting sensor is sensed.
6. The train positioning system of claim 3, wherein the axle counting modulation unit comprises a first modulation unit, the first modulation subunit comprising a first receiving subunit, a first modulation subunit, a first communication subunit;
the first receiving subunit is electrically connected with the first modulating subunit, and the first modulating subunit is electrically connected with the first communication subunit; the first receiving subunit is electrically connected with the axle counting sensing unit, and the first communication subunit is electrically connected with the vehicle-mounted controller;
the first receiving subunit is configured to receive the analog sensing signal, the first modulating subunit is configured to convert the analog sensing signal into the digital sensing signal, and the first communicating subunit is configured to send the digital sensing signal to the onboard controller.
7. The train positioning system of claim 6, wherein the first modulation subunit further comprises a first power supply subunit;
the first power supply subunit is electrically connected with the first receiving subunit, the first modulation subunit and the first communication subunit respectively, and the first power supply subunit is used for providing electric signals for the first receiving subunit, the first modulation subunit and the first communication subunit.
8. The train positioning system of claim 7, wherein the first modulation subunit further comprises a first power source recording unit;
the first power supply recording unit is electrically connected with the first power supply subunit and is used for recording the electric signals provided by the first power supply subunit.
9. The train positioning system of claim 6, wherein the axle counting modulation unit further comprises a second modulation unit, the second modulation subunit comprising a second receiving subunit, a second modulation subunit, a second communication subunit;
the second receiving subunit is electrically connected with the second modulating subunit, and the second modulating subunit is electrically connected with the second communication subunit; the second receiving subunit is electrically connected with the axle counting sensing unit, and the second communication subunit is electrically connected with the vehicle-mounted controller;
the second receiving subunit is configured to receive the analog sensing signal, the second modulating subunit is configured to convert the analog sensing signal into the digital sensing signal, and the second communicating subunit is configured to send the digital sensing signal to the onboard controller.
10. The train positioning system of claim 1, wherein the sensing signal is indicative of identification number information of the axle counting sensor, and the determining the position of the train by the onboard controller according to the sensing signal comprises:
and the vehicle-mounted controller determines the position of the train according to the identification number information of the axle counting sensor.
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| CN202010881523.7A CN114104040A (en) | 2020-08-27 | 2020-08-27 | Train positioning system |
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| CN202010881523.7A CN114104040A (en) | 2020-08-27 | 2020-08-27 | Train positioning system |
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