CN111016966A - Wireless locomotive signal and STP (spanning Tree protocol) integration system and method based on Beidou positioning - Google Patents
Wireless locomotive signal and STP (spanning Tree protocol) integration system and method based on Beidou positioning Download PDFInfo
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- CN111016966A CN111016966A CN201911395072.XA CN201911395072A CN111016966A CN 111016966 A CN111016966 A CN 111016966A CN 201911395072 A CN201911395072 A CN 201911395072A CN 111016966 A CN111016966 A CN 111016966A
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- 230000006854 communication Effects 0.000 claims description 44
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
- B61L15/0018—Communication with or on the vehicle or train
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
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Abstract
The invention relates to a wireless locomotive signal and STP integrated system and a wireless locomotive signal and STP integrated method based on Beidou positioning, wherein the system comprises vehicle-mounted equipment and ground equipment, the vehicle-mounted equipment comprises a vehicle-mounted wireless locomotive signal and STP integrated subsystem and LKJ equipment which are connected with each other, the ground equipment comprises a ground wireless locomotive signal and STP integrated subsystem, a satellite differential base station and an interlocking system, the satellite differential base station and the interlocking system are respectively connected with the ground locomotive signal and STP integrated subsystem, and the vehicle-mounted wireless locomotive signal and STP integrated subsystem is respectively connected with the satellite differential base station and the ground locomotive signal and STP integrated subsystem. Compared with the prior art, the invention ensures the advantages of high integration of vehicle-mounted and ground equipment and the like.
Description
Technical Field
The invention relates to a rail transit signal system, in particular to a wireless locomotive signal and STP integrated system and method based on Beidou positioning.
Background
Locomotive signal equipment has been used as one of the three major components of a locomotive, and is vehicle-mounted equipment necessary for improving transportation safety and realizing automatic alarming and automatic stopping functions on a locomotive. The STP system (wireless shunting locomotive signal and monitoring system) is the necessary equipment for realizing shunting operation safety protection.
The traditional locomotive signal is limited by the problem that a ground track circuit is interfered, and the wireless locomotive signal can be adopted to realize the train-ground communication through a GSM-R network. In addition, for the positioning transponder required by the wireless locomotive signal, the traditional passive transponder needs to increase the equipment cost and the maintenance cost, and a virtual transponder based on a Beidou positioning system can be adopted.
The STP system can be composed of a virtual responder based on Beidou positioning, a vehicle-mounted host, ground equipment, a Beidou satellite positioning module and a GSM-R communication module.
The system structure of the existing wireless cab signal and STP system is shown in fig. 1, and the following problems are faced for the existing cab signal and STP system:
1. the locomotive signal is limited by the interference of the ground track circuit, and the signal quality is poor;
2. when the wireless locomotive signal adopts the fixed active transponder, the maintenance cost of the equipment is increased;
3. under the condition that the wireless locomotive signal and the STP system are positioned by adopting the Beidou satellite positioning module, the Beidou satellite positioning modules of the vehicle-mounted and ground equipment of the two systems independently exist, so that unnecessary redundancy of the equipment is caused;
4. under the condition that the wireless locomotive signal and the STP system both adopt the GSM-R communication module to realize the train-ground communication, the GSM-R communication modules of the train-mounted and ground equipment of the two systems independently exist, so that unnecessary redundancy of the equipment is caused;
5. under the condition that the wireless locomotive signal and the STP system are communicated with the interlocking system to acquire the signal state, the interlocking system establishes an independent communication process for the two systems, a plurality of subsystems exist in the rail transit signal system, a communication channel also exists between the subsystems, and if the state acquisition of the two signal devices occupies too much resources, the normal operation of other systems is influenced;
6. the wireless locomotive signal and the STP system are communicated with a train operation recording device (LKJ), the LKJ establishes an independent communication process for the two systems, and if the information transmission occupies too much resources, the normal operation of other systems is influenced.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a wireless locomotive signal and STP integrated system and method based on Beidou positioning.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a wireless locomotive signal and STP integrated system based on big dipper location, this system includes mobile unit and ground equipment, mobile unit include interconnect's on-vehicle wireless locomotive signal and the integrated subsystem of STP and LKJ equipment, ground equipment include ground wireless locomotive signal and the integrated subsystem of STP and satellite difference basic station, the interlock system that are connected with the integrated subsystem of ground locomotive signal and STP respectively, on-vehicle wireless locomotive signal and the integrated subsystem of STP be connected with satellite difference basic station and ground locomotive signal and the integrated subsystem of STP respectively.
Preferably, the vehicle-mounted wireless locomotive signal and STP integrated subsystem comprises a STP vehicle-mounted host, a wireless locomotive signal vehicle-mounted device, a vehicle-mounted Beidou satellite positioning module and a wireless transmission unit RTM, the STP vehicle-mounted host is respectively connected with the wireless locomotive signal vehicle-mounted device, the vehicle-mounted Beidou satellite positioning module and the wireless transmission unit RTM, the vehicle-mounted Beidou satellite positioning module is connected with the satellite differential base station, and the wireless transmission unit RTM is connected with the ground locomotive signal and STP integrated subsystem.
Preferably, the wireless transmission unit RTM employs a vehicle-mounted GSM-R communication module.
Preferably, the ground locomotive signal and STP integrated subsystem comprises an STP ground host, a wireless locomotive signal ground device, a ground beidou satellite positioning module and a data exchange center DSC, wherein the STP ground host is respectively connected with the wireless locomotive signal ground device, the ground beidou satellite positioning module and the data exchange center DSC, the ground beidou satellite positioning module is connected with the satellite differential base station, and the data exchange center DSC is connected with the vehicle-mounted wireless locomotive signal and STP integrated subsystem.
Preferably, the data exchange center DSC adopts a ground GSM-R communication module.
Preferably, the ground equipment further comprises a virtual transponder arranged corresponding to the satellite differential base station.
Preferably, the LKJ device includes a human-machine interface and a train operation monitoring and recording device which are connected with each other.
A method for adopting the wireless cab signal and STP integrated system based on Beidou positioning comprises the following steps:
1) after the ground equipment is started, initializing information of each interface of the equipment, creating a plurality of threads, and respectively storing a set data structure in a cache region;
2) the ground equipment establishes communication with the interlocking system and receives equipment state information of the interlocking system;
3) the ground equipment periodically waits for judging whether the application information of the locomotive to be networked exists or not;
4) after the vehicle-mounted equipment is started, initializing information of each interface of the equipment, creating a plurality of threads, and respectively storing a set data structure in a cache region;
5) the vehicle-mounted equipment calculates whether the train is in the range of a certain station or not according to the Beidou positioning information, if so, the step 6) is continuously executed, and if not, the vehicle-mounted equipment judges the position of the locomotive once every 2 seconds and continuously executes the step 5);
6) if the locomotive is judged to be in the station range, the vehicle-mounted equipment controls the RTM to establish communication with the DSC, if the communication is established successfully, step 7) is executed, and if the communication is not established successfully, the vehicle-mounted equipment waits for 10s and then continuously tries to establish the communication;
7) the vehicle-mounted equipment GSM-R communication is successfully established, information is sent to the ground equipment of the station, and GSM-R communication with the ground equipment is established;
8) the vehicle-mounted equipment and the ground equipment establish GSM-R communication, and after a station number is input by a crew terminal, the vehicle-mounted equipment sends inter-cut network access information to a corresponding station to enter a network access process;
9) the ground equipment judges whether the locomotive is allowed to be registered in the network and is brought into the monitoring range of the ground equipment according to the received network access application registration information sent by the vehicle-mounted equipment; if the ground equipment allows locomotive registration, step 11) is executed, and if the ground equipment does not allow locomotive registration, step 10) is executed;
10) when the ground equipment does not allow vehicle-mounted registration, a registration failure information packet is sent to the vehicle-mounted equipment, and the reason is informed;
11) when the ground equipment allows vehicle-mounted registration, adding the locomotive into a monitoring locomotive linked list, and sequentially polling and tracking the connected locomotives in the linked list;
12) sequentially polling and sending control information and access information to the accessed locomotives;
13) and (4) carrying out data receiving and sending management between the main machine and the standby machine of the ground equipment, and returning to the step 3).
Compared with the prior art, the invention has the following advantages:
1. the invention designs that a wireless locomotive signal system and an STP system are integrated into a whole, and the two systems share a Beidou positioning module and a GSM-R communication module, thereby ensuring the high integration of vehicle-mounted and ground equipment;
2. the integrated system is designed to communicate with the LKJ system through the vehicle-mounted host of the STP system, and the signal state information of the interlocking system is acquired through the ground host of the STP system, so that the high efficiency of information transmission is ensured, the external interfaces of the LKJ and the interlocking system are reduced, and the stability of the interlocking system is improved;
3. in the step 5), a task based on Beidou positioning is designed, the function of a virtual transponder is realized through the Beidou positioning, and the fixed active transponder is replaced, so that the flexibility of transponder setting and the maintainability of equipment are improved;
4. the step 6) of the invention designs the GSM-R communication network, thereby increasing the data volume of communication, improving the stability of information transmission and avoiding the influence of landform and landform on the data transmission radio station of the existing communication equipment.
Drawings
FIG. 1 is a schematic diagram of a conventional wireless cab signal and STP system;
FIG. 2 is a schematic diagram of the system of the present invention;
FIG. 3 is a flow chart of the method of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
As shown in fig. 2, a wireless locomotive signal and STP integrated system based on beidou positioning comprises a vehicle-mounted device 1 and a ground device 2, wherein the vehicle-mounted device 1 comprises a vehicle-mounted wireless locomotive signal and STP integrated subsystem 101 and LKJ device 102 which are connected with each other, the ground device 2 comprises a ground wireless locomotive signal and STP integrated subsystem 201, a satellite differential base station 202 and an interlocking system 203 which are respectively connected with the ground locomotive signal and STP integrated subsystem 201, and the vehicle-mounted wireless locomotive signal and STP integrated subsystem 101 is respectively connected with the satellite differential base station 202 and the ground locomotive signal and STP integrated subsystem 201.
The vehicle-mounted wireless locomotive signal and STP integrated subsystem 101 comprises an STP vehicle-mounted host 1011, wireless locomotive signal vehicle-mounted equipment 1012, a vehicle-mounted Beidou satellite positioning module 1013 and a wireless transmission unit RTM1014, wherein the STP vehicle-mounted host 1011 is respectively connected with the wireless locomotive signal vehicle-mounted equipment 1012, the vehicle-mounted Beidou satellite positioning module 1013 and the wireless transmission unit RTM1014, the vehicle-mounted Beidou satellite positioning module 1013 is connected with the satellite differential base station 202, and the wireless transmission unit RTM1014 is connected with the ground locomotive signal and STP integrated subsystem 201. The RTM1014 of the wireless transmission unit adopts a vehicle-mounted GSM-R communication module. The LKJ device 102 includes a human-machine interface 1021 and a train operation monitoring and recording device 1022 connected to each other.
The ground locomotive signal and STP integrated subsystem 201 comprises an STP ground host 2013, wireless locomotive signal ground equipment 2014, a ground Beidou satellite positioning module 2011 and a data exchange center DSC2012, the STP ground host 2013 is respectively connected with the wireless locomotive signal ground equipment 2014, the ground Beidou satellite positioning module 2011 and the data exchange center DSC2012, the ground Beidou satellite positioning module 2011 is connected with the satellite differential base station 202, and the data exchange center DSC2012 is connected with the vehicle-mounted wireless locomotive signal and STP integrated subsystem 101. The data exchange center DSC2012 adopts a ground GSM-R communication module. The ground device 2 further comprises a virtual transponder 204 arranged in correspondence with the satellite differential base station.
Therefore, the wireless locomotive signal and STP system of the invention uses the Beidou satellite positioning module and the GSM-R communication module and simultaneously communicates with the interlocking system, the wireless locomotive signal and the STP system are integrated into a whole, and the two systems share the Beidou positioning module and the GSM-R communication module, thereby simultaneously realizing train operation control and shunting operation protection.
As shown in fig. 3, the method and the device for efficiently acquiring the signal state and monitoring the train operation in real time by integrating the wireless locomotive signal and the STP system, the method comprises the following steps:
step 2, the ground equipment establishes communication with the interlocking system and receives equipment state information of the interlocking system;
step 3, the ground equipment periodically waits for judging whether the application information of the locomotive to be networked exists;
step 4, after the vehicle-mounted equipment is started, an equipment initialization module initializes information of each interface of the equipment, creates a plurality of threads and stores a set data structure in a cache region respectively;
step 5, the vehicle-mounted equipment calculates whether the train is in the range of a certain station or not according to the Beidou positioning information, if so, the train is continuously executed, and if not, the vehicle-mounted equipment judges the position of the locomotive every 2 s;
step 6, if the locomotive is judged to be in the station range, the vehicle-mounted equipment controls the RTM to establish communication with the DSC, if the communication is established successfully, the execution is continued, and if the communication is not established successfully, the communication establishment is continuously tried after 10s of waiting;
step 7, the vehicle-mounted equipment GSM-R communication is successfully established, information is sent to the ground equipment of the station, and GSM-R communication with the ground equipment is established;
and 8: the vehicle-mounted equipment and the ground equipment establish GSM-R communication, and after a crew inputs a station number, the vehicle-mounted equipment sends inter-cut network access information to a corresponding station to enter a network access process;
and step 9: the ground equipment judges whether the locomotive is allowed to be registered in the network and is brought into the monitoring range of the ground equipment according to the received network access application registration information sent by the vehicle-mounted equipment; if the ground equipment allows the locomotive to be registered, executing step 11, and if the ground equipment does not allow the locomotive to be registered, executing step 10;
step 10: when the ground equipment does not allow vehicle-mounted registration, a registration failure information packet is sent to the vehicle-mounted equipment, and the reason is informed;
step 11: when the ground equipment allows vehicle-mounted registration, adding the locomotive into a monitoring locomotive linked list, and sequentially polling and tracking the connected locomotives in the linked list;
step 12: sequentially polling and sending control information and access information to the accessed locomotives;
step 13: and (3) carrying out data receiving and sending management between the main machine and the standby machine of the ground equipment, and returning to the step 3.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. The utility model provides a wireless locomotive signal and STP integrated system based on big dipper location, this system includes mobile unit and ground equipment, its characterized in that, mobile unit include interconnect's on-vehicle wireless locomotive signal and STP integrated subsystem and LKJ equipment, ground equipment include ground wireless locomotive signal and STP integrated subsystem and the satellite difference basic station, the interlock system that are connected with ground locomotive signal and STP integrated subsystem respectively, on-vehicle wireless locomotive signal and STP integrated subsystem respectively with satellite difference basic station and ground locomotive signal and STP integrated subsystem be connected.
2. The wireless cab signal and STP integrated system based on beidou positioning of claim 1, wherein the vehicle wireless cab signal and STP integrated subsystem comprises a STP vehicle host, a wireless cab signal vehicle device, a vehicle beidou satellite positioning module and a wireless transmission unit RTM, the STP vehicle host is connected with the wireless cab signal vehicle device, the vehicle beidou satellite positioning module and the wireless transmission unit RTM, the vehicle beidou satellite positioning module is connected with the satellite differential base station, and the wireless transmission unit RTM and ground cab signal and STP integrated subsystem is connected.
3. The wireless cab signal and STP integrated system based on beidou positioning of claim 2, wherein the wireless transmission unit RTM employs an onboard GSM-R communication module.
4. The wireless cab signal and STP integrated system based on beidou positioning of claim 1, wherein the ground cab signal and STP integrated subsystem comprises an STP ground host, wireless cab signal ground equipment, a ground beidou satellite positioning module and a data exchange center DSC, the STP ground host is respectively connected with the wireless cab signal ground equipment, the ground beidou satellite positioning module and the data exchange center DSC, the ground beidou satellite positioning module is connected with a satellite differential base station, and the data exchange center DSC is connected with an on-vehicle wireless cab signal and STP integrated subsystem.
5. The integrated Beidou positioning-based wireless cab signal and STP system according to claim 4, wherein the data exchange center DSC adopts a ground GSM-R communication module.
6. The integrated Beidou positioning-based wireless cab signal and STP system according to claim 1, wherein the ground equipment further comprises a virtual transponder corresponding to the satellite differential base station.
7. The integrated Beidou positioning-based wireless locomotive signal and STP system according to claim 1, wherein the LKJ device comprises a human-machine interface and a train operation monitoring and recording device which are connected with each other.
8. A method of using the beidou location based wireless cab signal and STP integrated system of claim 1, the method comprising the steps of:
1) after the ground equipment is started, initializing information of each interface of the equipment, creating a plurality of threads, and respectively storing a set data structure in a cache region;
2) the ground equipment establishes communication with the interlocking system and receives equipment state information of the interlocking system;
3) the ground equipment periodically waits for judging whether the application information of the locomotive to be networked exists or not;
4) after the vehicle-mounted equipment is started, initializing information of each interface of the equipment, creating a plurality of threads, and respectively storing a set data structure in a cache region;
5) the vehicle-mounted equipment calculates whether the train is in the range of a certain station or not according to the Beidou positioning information, if so, the step 6) is continuously executed, and if not, the vehicle-mounted equipment judges the position of the locomotive once every 2 seconds and continuously executes the step 5);
6) if the locomotive is judged to be in the station range, the vehicle-mounted equipment controls the RTM to establish communication with the DSC, if the communication is established successfully, step 7) is executed, and if the communication is not established successfully, the vehicle-mounted equipment waits for 10s and then continuously tries to establish the communication;
7) the vehicle-mounted equipment GSM-R communication is successfully established, information is sent to the ground equipment of the station, and GSM-R communication with the ground equipment is established;
8) the vehicle-mounted equipment and the ground equipment establish GSM-R communication, and after a station number is input by a crew terminal, the vehicle-mounted equipment sends inter-cut network access information to a corresponding station to enter a network access process;
9) the ground equipment judges whether the locomotive is allowed to be registered in the network and is brought into the monitoring range of the ground equipment according to the received network access application registration information sent by the vehicle-mounted equipment; if the ground equipment allows locomotive registration, step 11) is executed, and if the ground equipment does not allow locomotive registration, step 10) is executed;
10) when the ground equipment does not allow vehicle-mounted registration, a registration failure information packet is sent to the vehicle-mounted equipment, and the reason is informed;
11) when the ground equipment allows vehicle-mounted registration, adding the locomotive into a monitoring locomotive linked list, and sequentially polling and tracking the connected locomotives in the linked list;
12) sequentially polling and sending control information and access information to the accessed locomotives;
13) and (4) carrying out data receiving and sending management between the main machine and the standby machine of the ground equipment, and returning to the step 3).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112415556A (en) * | 2020-11-26 | 2021-02-26 | 中国铁道科学研究院集团有限公司 | Dynamic detection vehicle positioning system and working method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112415556A (en) * | 2020-11-26 | 2021-02-26 | 中国铁道科学研究院集团有限公司 | Dynamic detection vehicle positioning system and working method |
| CN112415556B (en) * | 2020-11-26 | 2023-12-01 | 中国铁道科学研究院集团有限公司 | Dynamic detection vehicle positioning system and working method |
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