CN109305201B - Simulation test device and method for rail transit signal system - Google Patents
Simulation test device and method for rail transit signal system Download PDFInfo
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- CN109305201B CN109305201B CN201811339636.3A CN201811339636A CN109305201B CN 109305201 B CN109305201 B CN 109305201B CN 201811339636 A CN201811339636 A CN 201811339636A CN 109305201 B CN109305201 B CN 109305201B
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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
A simulation test apparatus of a rail transit signal system, the apparatus comprising: the vehicle-mounted equipment acquires vehicle-mounted data; a plurality of ground devices that acquire ground data; the safety communication protocol module is connected between the vehicle-mounted equipment and the ground equipment or between the ground equipment and the ground equipment; and the safety communication protocol module is used for receiving and sending the vehicle-mounted data and the ground data by applying a safety communication protocol. Compared with the prior art, the invention enables the communication object of the vehicle-mounted equipment or the ground equipment to be changed into the safety communication protocol module, and the safety communication protocol module converts the vehicle-mounted data and the ground data into the data conforming to the safety communication protocol, thereby improving the compatibility of the interconnection and intercommunication of the CBTC system; meanwhile, the secure communication protocol module can encrypt data, and the security of data communication is improved.
Description
Technical Field
The invention relates to the field of rail transit signals, in particular to a simulation test device and method of a rail transit signal system.
Background
In urban rail transit, a Communication Based Train Control system (CBTC) is a Train operation Control system that utilizes high-precision Train positioning, large amounts of continuous Train-ground two-way Communication, and realizes safe Train Control through ground equipment and vehicle-mounted equipment, and its main task is to ensure safe operation of trains in a system-controlled line.
At present, urban rail transit is widely applied to various main cities. The CBTC system signal devices used by each signal manufacturer are different, different subway line signal manufacturers may be different in each city, and the device types and function implementation manners of the manufacturers may have great differences, so that the signal devices cannot be compatible, two different rail transit line vehicles in the same city cannot be shared, and the establishment of the signal system standard in the urban rail transit industry and the energy-saving and efficient development of the city are not facilitated. The CBTC system interconnection is an interface specification between different vehicle-mounted and ground subsystems among different signal equipment manufacturers, the CBTC system interconnection is a requirement for integrated construction and operation sharing of an urban rail transit network, through comprehensive scheduling and mixed train running operation of networks among different lines of urban rail transit, resource sharing is realized through interconnection and intercommunication in rail transit construction, operation and management, resource consumption is reduced, and the utilization rate of the system is improved.
In the prior art, a User Datagram Protocol (UDP) is generally used for data communication between subsystems of most CBTC system signal devices, and is easily interfered by external devices, and an effective information security defense measure is lacking. Part of CBTC systems which have already realized the interconnection and intercommunication operation of urban rail transit all need to develop a set of new systems which accord with corresponding standards separately among different manufacturers, and the functional test of the interconnection and intercommunication standard of the system involves the coordination and communication of two parties or even more parties, and the development cycle is long, the compatibility is poor, and the cost is high.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a simulation test device and method for a rail transit signal system, so as to improve the compatibility and safety of the interconnection and intercommunication of a CBTC system, shorten the development period and reduce the development cost.
In order to solve the above technical problem, an aspect of the present invention provides a simulation test apparatus for a rail transit signal system, the apparatus including: the vehicle-mounted equipment acquires vehicle-mounted data; a plurality of ground devices that acquire ground data; the safety communication protocol module is connected between the vehicle-mounted equipment and the ground equipment or between the ground equipment and the ground equipment; and the safety communication protocol module is used for receiving and sending the vehicle-mounted data and the ground data by applying a safety communication protocol.
In an embodiment of the present invention, the secure communication protocol module includes a ground module and an in-vehicle module, the ground module is located in the ground device, and the in-vehicle module is located in the in-vehicle device.
In an embodiment of the present invention, the vehicle-mounted device and the ground device perform data communication by using a transmission control protocol.
In an embodiment of the present invention, the ground device and the ground device perform data communication by using a user datagram protocol.
In one embodiment of the invention, the vehicle-mounted equipment comprises a vehicle-mounted controller, and the ground equipment comprises a regional controller and a computer interlocking unit.
In an embodiment of the present invention, the secure communication protocol is a railway secure communication protocol.
In another aspect of the present invention, a simulation test method for a rail transit signal system is provided, where the method includes: the vehicle-mounted equipment acquires vehicle-mounted data; a plurality of ground devices acquire ground data; the safety communication protocol module is used for receiving and sending the vehicle-mounted data and the ground data by a safety communication protocol; wherein the secure communication protocol module is connected between the vehicle-mounted device and the surface device or between the surface device and the surface device.
In an embodiment of the present invention, the secure communication protocol module includes a ground module and an in-vehicle module, the ground module is located in the ground device, and the in-vehicle module is located in the in-vehicle device.
In an embodiment of the present invention, the vehicle-mounted device and the ground device perform data communication by using a transmission control protocol.
In an embodiment of the present invention, the ground device and the ground device perform data communication by using a user datagram protocol.
In one embodiment of the invention, the vehicle-mounted equipment comprises a vehicle-mounted controller, and the ground equipment comprises a regional controller and a computer interlocking unit.
In an embodiment of the present invention, the secure communication protocol is a railway secure communication protocol.
Compared with the prior art, the invention has the following advantages: the invention provides a simulation test device and a method of a rail transit signal system.A safety communication protocol module is connected between vehicle-mounted equipment and ground equipment and between the ground equipment, so that a communication object of the vehicle-mounted equipment or the ground equipment becomes a safety communication protocol module, the safety communication protocol module converts vehicle-mounted data and ground data into data conforming to a safety communication protocol, and the compatibility of interconnection and intercommunication of a CBTC (communication based train control) system is improved; meanwhile, the secure communication protocol module can encrypt data, and the security of data communication is improved.
Drawings
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, wherein:
fig. 1 is a schematic diagram of a prior art rail traffic signaling system.
Fig. 2 is a schematic diagram of a simulation testing apparatus of a rail transit signal system according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a geo-security communication protocol module according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of a vehicle-ground safety communication protocol module according to an embodiment of the invention.
Fig. 5 is a flowchart of a simulation test method of a rail transit signal system according to the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments disclosed below.
As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.
Furthermore, each of the embodiments described below has one or more technical features, and thus, the use of the technical features of any one embodiment does not necessarily mean that all of the technical features of any one embodiment are implemented at the same time or that only some or all of the technical features of different embodiments are implemented separately. In other words, those skilled in the art can selectively implement some or all of the features of any embodiment or combinations of some or all of the features of multiple embodiments according to the disclosure of the present invention and according to design specifications or implementation requirements, thereby increasing the flexibility in implementing the invention.
It will be understood that when an element is referred to as being "on," "connected to," "coupled to" or "contacting" another element, it can be directly on, connected or coupled to, or contacting the other element or intervening elements may be present. In contrast, when an element is referred to as being "directly on," "directly connected to," "directly coupled to" or "directly contacting" another element, there are no intervening elements present. Similarly, when a first element is referred to as being "in electrical contact with" or "electrically coupled to" a second element, there is an electrical path between the first element and the second element that allows current to flow. The electrical path may include capacitors, coupled inductors, and/or other elements that allow current to flow even without direct contact between the conductive elements.
These and other features and characteristics of the present invention, as well as the methods of operation and functions of the related elements of structure and the combination of parts and economies of manufacture, will become more apparent upon consideration of the following detailed description with reference to the accompanying drawings, all of which form a part of this specification. It is to be expressly understood, however, that the drawings are for the purpose of illustration and description only and are not intended as a definition of the limits of the invention. It should be understood that all of the accompanying drawings are not to scale.
As introduced in the background art, in the prior art, most of the subsystems of the CBTC system signal device usually use User Datagram Protocol (UDP) for data communication, which is easily interfered by external devices and lacks effective information security defense measures. Part of CBTC systems which have already realized the interconnection and intercommunication operation of urban rail transit all need to develop a set of new systems which accord with corresponding standards separately among different manufacturers, and the functional test of the interconnection and intercommunication standard of the system involves the coordination and communication of two parties or even more parties, and the development cycle is long, the compatibility is poor, and the cost is high.
Fig. 1 is a schematic diagram of a prior art rail traffic signaling system. As shown in fig. 1, the vehicle-mounted device 101 (e.g., a vehicle-mounted controller, etc.) and the ground devices 102 and 103 (e.g., a zone controller, a computer interlock, etc.) come from different signal manufacturers, and there may be great differences in device types and function implementation manners of the manufacturers, which results in incompatibility of the signal devices, and two different rail transit line vehicles in the same city cannot be shared, which is not favorable for establishment of signal system standards in the urban rail transit industry and energy-saving and efficient development of the city. Meanwhile, the subsystems of the vehicle-mounted device 101 and the ground devices 102 and 103 usually use a User Datagram Protocol (UDP) for data communication, which is susceptible to external interference and lacks effective information security defense measures.
The embodiment of the invention describes a simulation test device of a rail transit signal system, which aims to improve the compatibility and safety of the interconnection and intercommunication of a CBTC (communication based train control) system, shorten the development period and reduce the development cost.
Fig. 2 is a schematic diagram of a simulation testing apparatus of a rail transit signal system according to an embodiment of the present invention. Referring to fig. 2, the simulation test apparatus includes an in-vehicle device 110, a plurality of ground devices 121 and 122, and a secure communication protocol module. The in-vehicle device 110 is used to acquire in-vehicle data. Surface equipment 121,122 is used to acquire surface data. The safety communication protocol module receives and transmits the vehicle-mounted data and the ground data by applying a safety communication protocol. The safety communication protocol module includes a vehicle-ground safety communication protocol module 131, a vehicle-ground safety communication protocol module 132, and a ground safety communication protocol module 133. The vehicle-ground secure communication protocol module 131 is connected between the vehicle-mounted device 110 and the ground device 121. The vehicle-ground secure communication protocol module 132 is connected between the vehicle-mounted device 110 and the ground device 122. The ground safety communication protocol module 132 is connected between the ground equipment 121 and the ground equipment 122. The in-Vehicle device 110 includes, but is not limited to, a Vehicle on-board Controller (VOBC), and the ground device includes, but is not limited to, a Zone Controller (ZC), and a Computer Interlocking (CI).
Fig. 3 and 4 are schematic diagrams of a ground safety communication protocol module according to an embodiment of the present invention and a vehicle ground safety communication protocol module according to an embodiment of the present invention, respectively.
Referring to fig. 3, the geo-security communication protocol module includes a ground module 140 and a ground module 150. In an embodiment of the invention, the surface module 140 may be located in the surface equipment 121 and the surface module 150 may be located in the surface equipment 122. In another embodiment of the present invention, the surface modules 140, 150 correspond to and are independent of the existing CBTC system surface equipment 121,122, and the surface modules 140, 150 are also independent of each other. Referring to fig. 4, the ground safety communication protocol module includes a ground module 160 and an on-board module 170. In an embodiment of the present invention, the ground module 160 may be located in the ground device 121 and the vehicle module 170 may be located in the vehicle device 110. In another embodiment of the present invention, the ground module 160 and the on-board module 170 correspond to and are independent of the existing CBTC system ground equipment 121 and the on-board equipment 110, and the ground module 160 and the on-board module 170 are also independent of each other.
In an embodiment of the present invention, data communication is performed between the on-board device 110 and the ground devices 121 and 122 in the simulation testing apparatus of the rail transit signal system by using a Transmission Control Protocol (TCP). In an embodiment of the present invention, the ground module 160 may be located in the ground device 121 and the vehicle module 170 may be located in the vehicle device 110. As shown in fig. 4, in the vehicle-ground security communication protocol module, the ground module 160 located in the ground device 121 receives data transmitted by the vehicle-mounted module 170 located in the vehicle-mounted device 110 through TCP communication. The in-vehicle module 170 located in the in-vehicle device 110 receives data of the ground module 160 located in the ground device 121 through TCP communication.
In an embodiment of the present invention, data communication is performed between the ground device 121 and the ground device 122 in the simulation testing apparatus of the rail transit signal system by using User Datagram Protocol (UDP). In an embodiment of the invention, the surface module 140 may be located in the surface equipment 121 and the surface module 150 may be located in the surface equipment 122. As shown in fig. 3, in the ground secure communication protocol module 133, the ground modules 140 located in the ground devices 121 mutually receive data of the ground modules 150 located in the other ground devices 122 by means of UDP communication.
In an embodiment of the invention, a safety communication protocol in the simulation testing apparatus of the rail transit Signal system is a Railway safety communication protocol (RSSP). The railway safety communication protocol comprises an encryption algorithm used for encrypting the received and transmitted data, so that the safety of data transmission is improved. Referring to fig. 3, in the ground secure communication protocol module, the secure communication protocol is RSSP-I secure communication protocol. The ground module 140 includes a first ground sub-module 141 and a second ground sub-module 142, and the ground module 150 includes a third ground sub-module 151 and a fourth ground sub-module 152. It is understood that the first ground sub-module 141 and the second ground sub-module 142 may be the same module, and the third ground sub-module 151 and the fourth ground sub-module 152 may be the same module.
The data interaction of the ground module 140 includes: (1) the first terrestrial sub-module 141 receives the terrestrial data transmitted by the terrestrial device 121 in the UDP communication manner, converts the terrestrial data using the RSSP-I secure communication protocol, and transmits the converted terrestrial data to the third terrestrial sub-module 151 in the UDP communication manner. (2) The second terrestrial sub-module 142 receives the terrestrial data sent by the fourth terrestrial sub-module 152 in a UDP communication manner, converts the terrestrial data by applying the RSSP-I secure communication protocol, and sends the converted terrestrial data to the terrestrial device 121 in a UDP communication manner.
Referring to fig. 4, in the vehicle-ground safety communication protocol module, the safety communication protocol is RSSP-II safety communication protocol. The ground module 160 includes a first ground sub-module 161 and a second ground sub-module 162, and the on-board module 170 includes a first on-board sub-module 171 and a second on-board sub-module 172. It is understood that the first ground sub-module 161 and the second ground sub-module 162 may be the same module, and the first vehicle-mounted sub-module 171 and the second vehicle-mounted sub-module 172 may be the same module.
Wherein the data interaction of the ground module 160 includes: (1) the first terrestrial sub-module 161 receives terrestrial data transmitted by the terrestrial device 121 in a UDP communication manner, converts the terrestrial data using the RSSP-II secure communication protocol, and transmits the converted terrestrial data to the first vehicle-mounted sub-module 171 in a TCP communication manner. (2) The second ground sub-module 162 receives the vehicle-mounted data sent by the second vehicle sub-module 172 in a TCP communication manner, converts the vehicle-mounted data by applying the RSSP-II secure communication protocol, and sends the converted vehicle-mounted data to the ground device 121.
The data interaction of the in-vehicle module 170 includes: (1) the second vehicle-mounted sub-module 172 receives the vehicle-mounted data sent by the vehicle-mounted device 110 in a UDP communication manner, converts the vehicle-mounted data by applying the RSSP-II secure communication protocol, and sends the converted vehicle-mounted data to the second ground sub-module 162 in a TCP communication manner. (2) The first vehicle-mounted sub-module 161 receives the ground data transmitted by the first ground sub-module 171 in a TCP communication manner, converts the ground data using the RSSP-II secure communication protocol, and transmits the converted ground data to the vehicle-mounted device 110.
The invention provides a simulation test device of a rail transit signal system, wherein a safety communication protocol module is connected between vehicle-mounted equipment and ground equipment and between the ground equipment, so that a communication object of the vehicle-mounted equipment or the ground equipment becomes the safety communication protocol module, the safety communication protocol module converts vehicle-mounted data and ground data into data conforming to a safety communication protocol, and the compatibility of interconnection and intercommunication of a CBTC (communication based train control) system is improved; meanwhile, the secure communication protocol module can encrypt data, and the security of data communication is improved.
The invention provides a simulation test method of a rail transit signal system. The compatibility and the safety of the interconnection and intercommunication of the CBTC system are improved, the development period is shortened, and the development cost is reduced. A flow chart of a simulation test method of a rail transit signal system according to the present invention is shown in fig. 5, and the following describes the simulation test method of the rail transit signal system with reference to fig. 5.
In step 210, the vehicle-mounted device 110 acquires vehicle-mounted data.
At step 220, the plurality of surface devices 121,122 acquire surface data.
In step 230, the secure communication protocol module receives and transmits the vehicle data and the ground data using the secure communication protocol.
In step 230, the secure communication protocol module is connected between the vehicle-mounted device 110 and the surface devices 121,122 or between the surface device 121 and the surface device 122. The safety communication protocol module connected between the vehicle-mounted device 110 and the ground device 121 is a vehicle-ground safety communication protocol module 131, the safety communication protocol module connected between the vehicle-mounted device 110 and the ground device 122 is a vehicle-ground safety communication protocol module 132, and the safety communication protocol module connected between the ground device 121 and the ground device 122 is a ground-ground safety communication protocol module 133. The vehicle-ground safety communication protocol module 131, the vehicle-ground safety communication protocol module 132 and the ground safety communication protocol module 133 receive and transmit vehicle-mounted data and ground data using a safety communication protocol.
The invention provides a simulation test method of a rail transit signal system, wherein a safety communication protocol module is connected between vehicle-mounted equipment and ground equipment and between the ground equipment, so that a communication object of the vehicle-mounted equipment or the ground equipment becomes the safety communication protocol module, the safety communication protocol module converts vehicle-mounted data and ground data into data conforming to a safety communication protocol, and the compatibility of interconnection and intercommunication of a CBTC (communication based train control) system is improved; meanwhile, the secure communication protocol module can encrypt data, and the security of data communication is improved.
An embodiment of the present invention further provides an agreement for an open, unified line and train data structure. Data interaction in the safety communication protocol module needs to have the same data structure, and because different manufacturers understand or define the same concept differently, in order to ensure the consistency of data transmission in the safety communication protocol module and avoid the condition that the data of the same concept represents two properties, open line and train data structures need to be appointed. The data structure of the contract needs to be explicit:
(1) the data format needs to be agreed to represent the uniform data format of different manufacturers and characteristics, and the uniformity of data is ensured. (2) Directions including uplink and downlink directions, left and right sides, uplink and downlink link directions, bulb lines and other data containing direction attributes need to be agreed with the meanings of the respective descriptions. (3) The location, including data of location attributes of all devices in the CBTC system, must agree on the same description and meaning. (4) The characteristic attribute and the characteristic attribute of the data representation need to be clear, the value of the same parameter needs to be clear of the characteristic attribute, and the mapping relation between different manufacturers is agreed. (5) The network is an open and unified network plan, which allows the specified network devices to communicate normally and shields illegal communication devices.
Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The various illustrative logical modules, and circuits described in connection with the embodiments disclosed herein may be implemented or performed with a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
Although the present invention has been described with reference to the present specific embodiments, it will be appreciated by those skilled in the art that the above embodiments are merely illustrative of the present invention, and various equivalent changes and substitutions may be made without departing from the spirit of the invention, and therefore, it is intended that all changes and modifications to the above embodiments within the spirit and scope of the present invention be covered by the appended claims.
Claims (12)
1. A simulation test apparatus of a rail transit signal system, the apparatus comprising:
the method comprises the following steps that a plurality of vehicle-mounted devices from different manufacturers acquire vehicle-mounted data, and the structures of the vehicle-mounted data acquired by different vehicle-mounted devices are different;
the ground equipment acquires ground data, and the ground data acquired by different ground equipment have different structures;
the vehicle-ground safety communication protocol module is connected between the vehicle-mounted equipment and the ground equipment, and receives and transmits the vehicle-mounted data and the ground data by applying a safety communication protocol; and
a geo-safe communication protocol module connected between the plurality of ground devices, the geo-safe communication protocol module to apply the safe communication protocol to receive and transmit the ground data;
the secure communication protocol further includes a structure for agreeing on an open line and transmitting data between the in-vehicle device and the ground device, and a structure for agreeing on an open line and transmitting data between different ground devices.
2. The simulation test apparatus of claim 1, wherein the vehicle-to-ground secure communication protocol module comprises a ground module and an on-board module, the ground module being located in the ground equipment and the on-board module being located in the on-board equipment.
3. The simulation test apparatus of claim 1 or 2, wherein the vehicle-mounted device and the ground-based device are in data communication with each other via a transmission control protocol.
4. The simulation test apparatus of claim 1 or 2, wherein the surface device and the surface device are in data communication with each other via a user datagram protocol.
5. The simulation test apparatus of claim 1, wherein the on-board device comprises an on-board controller, and the surface device comprises a zone controller and a computer interlock unit.
6. The simulation test apparatus of claim 1, wherein the secure communication protocol is a railway secure communication protocol.
7. A simulation test method of a rail transit signal system, the method comprising:
the method comprises the steps that a plurality of vehicle-mounted devices from different manufacturers acquire vehicle-mounted data, and the structures of the vehicle-mounted data acquired by different vehicle-mounted devices are different;
the method comprises the steps that ground data are obtained by a plurality of ground devices from different manufacturers, and the ground data obtained by different ground devices are different in structure;
the vehicle-ground safety communication protocol module is used for receiving and sending the vehicle-mounted data and the ground data by applying a safety communication protocol, wherein the vehicle-ground safety communication protocol module is connected between the vehicle-mounted equipment and the ground equipment; and
a ground safety communication protocol module receives and transmits the ground data by applying the safety communication protocol, wherein the ground safety communication protocol module is connected among the plurality of ground equipment;
the secure communication protocol further includes a structure for agreeing on an open line and transmitting data between the in-vehicle device and the ground device, and a structure for agreeing on an open line and transmitting data between different ground devices.
8. The simulation test method of claim 7, wherein the vehicle-ground safety communication protocol module comprises a ground module and an on-board module, the ground module being located in the ground device and the on-board module being located in the on-board device.
9. The simulation test method according to claim 7 or 8, wherein the vehicle-mounted device and the ground-based device are in data communication with each other by a transmission control protocol.
10. The simulation test method of claim 7 or 8, wherein the ground equipment and the ground equipment are in data communication with each other via a user datagram protocol.
11. The simulation testing method of claim 7, wherein the vehicle-mounted device comprises a vehicle-mounted controller, and the ground-based device comprises a zone controller and a computer interlocking unit.
12. The simulation test method of claim 7, wherein the secure communication protocol is a railway secure communication protocol.
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| CN112118593A (en) * | 2020-08-28 | 2020-12-22 | 通号城市轨道交通技术有限公司 | Vehicle-ground communication simulation method and device based on RSSP-II protocol |
| CN112124357B (en) * | 2020-09-10 | 2022-07-19 | 交控科技股份有限公司 | Train communication method and train whole body |
| CN112141174B (en) * | 2020-09-21 | 2023-01-20 | 通号城市轨道交通技术有限公司 | ZC simulation system and method in VOBC test environment |
| CN112235272B (en) * | 2020-09-30 | 2022-10-18 | 通号城市轨道交通技术有限公司 | Communication method, device and readable storage medium |
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| JP2012076626A (en) * | 2010-10-01 | 2012-04-19 | Hitachi Ltd | Simulator for test for electronic interlocking device, and simulation method for electronic interlocking device |
| CN106993307A (en) * | 2017-06-09 | 2017-07-28 | 湖南中车时代通信信号有限公司 | Train-ground communication analogue system and method |
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| CN109305201A (en) | 2019-02-05 |
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