CN116095185A

CN116095185A - Transmission method and device for line topology data

Info

Publication number: CN116095185A
Application number: CN202310154503.3A
Authority: CN
Inventors: 冯凯; 王建敏; 鲍鹏宇; 梁进宁
Original assignee: CRSC Research and Design Institute Group Co Ltd; China Railway Signal and Communication Corp Ltd CRSC
Current assignee: CRSC Research and Design Institute Group Co Ltd; China Railway Signal and Communication Corp Ltd CRSC
Priority date: 2023-02-22
Filing date: 2023-02-22
Publication date: 2023-05-09

Abstract

The disclosure provides a transmission method and a device of line topology data, and the transmission method of the line topology data comprises the steps of transmitting formed line topology data frames, wherein the line topology data frames comprise: line element data address and line element atomic data. The transmission method and the device of the line topology data clearly describe the front and the back line elements in the line topology data, reduce the transmission times of data frames, effectively save communication resources and reduce the processing load of the system.

Description

Transmission method and device for line topology data

Technical Field

The invention belongs to the technical field of information communication, and particularly relates to a transmission method and device of line topology data.

Background

In the field of information communication technology, data transmission between devices is a necessary means for transferring information. In the technical field of track control, data needs to be transmitted among vehicle-mounted equipment, RBC (Radio Block Central, wireless block center), TSRS (Temporary Speed Restriction Server, temporary speed limiting server) and other equipment so as to control and manage a train.

Along the railway, various line elements such as annunciators, turnouts, transponders and the like are arranged, and the various railway elements have a front-back position relationship, for example, the annunciators are arranged behind the transponders. In the existing railway data transmission system, for the positional relationship, a plurality of data frames are required among the vehicle-mounted devices, RBC, TSRS and other devices to describe the relationship more clearly. Because the transmission, reception and processing of a plurality of data frames occupy system resources, resource waste and processing load are caused.

For this reason, a simple and effective data transmission method is required, which can clearly describe the relationship between the individual line elements on the line.

Disclosure of Invention

In order to solve at least one of the above problems, the present disclosure provides a transmission method and device for line topology data.

The present disclosure provides a line topology data transmission method, wherein,

the formed line topology data frame is transmitted, wherein,

the line topology data frame includes: line element data address and line element atomic data.

In some embodiments, the line element data address is a present line element address, and the line element atomic data is comprised of a previous line element address, a present line element number, a present line element type, and a subsequent line element address.

In some embodiments of the present invention, in some embodiments,

the length of the line element data address is 1 byte;

the length of the previous line element address is 1 byte; and/or the number of the groups of groups,

the length of the line element number and the line element type is 1 byte; and/or the number of the groups of groups,

the length of the latter line element address is 1 byte.

In some embodiments, the length of the present line element number is 8 bits.

In some embodiments, the line elements include one or more of a signal, a switch point, a switch position, a switch tie, a normal transponder, a precision transponder, and a stock track.

The present disclosure also provides a line topology data receiving method, wherein,

a line topology data frame is received, wherein,

In some embodiments of the present invention, in some embodiments,

the length of the line element data address is 1 byte;

the length of the latter line element address is 1 byte.

In some embodiments, the length of the present line element number is 8 bits.

The present disclosure also provides a line topology data transmitting apparatus, comprising a transmitting unit, wherein,

the transmitting unit is configured to transmit the formed line topology data frame, where,

The present disclosure also provides a line topology data receiving device, comprising a receiving unit, wherein,

the receiving unit is configured to receive a line topology data frame, where,

Compared with the prior art, the invention has the following advantages:

the present disclosure provides a transmission method for line topology data, and the line topology data transmission method and device provided in the present disclosure clearly describe front and rear line elements in the line topology data, reduce the transmission times of data frames, effectively save communication resources, and reduce the processing load of the system.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 illustrates a line topology data transmission schematic according to an embodiment of the present disclosure;

FIG. 2 illustrates a block diagram of a train control system in accordance with an embodiment of the present disclosure;

fig. 3 illustrates a topology of line elements according to an embodiment of the present disclosure.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Fig. 1 shows a line topology data transmission schematic according to an embodiment of the present disclosure. As shown in fig. 1, the line topology data is formed in a transmitting apparatus and then transmitted to a receiving apparatus through a wireless or wired link. In the embodiment of the present disclosure, transmission line topology data between the vehicle-mounted device and the TSRS is taken as an example for exemplary explanation. In train control, the vehicle-mounted device can check the traveling permission by means of the line topology data received from the TSRS.

In the embodiment of the disclosure, the data transmission relationship between the vehicle-mounted device and the ground device is described in connection with the structural block diagram of the train control system shown in fig. 2. As shown in fig. 2, the train system according to the embodiment of the present disclosure includes a vehicle-mounted device of a vehicle-mounted system on a train and an RBC of a ground system, where the vehicle-mounted device may receive information such as a driving license MA, a switch position, a signal state, and the like from the RBC, and check the received driving license in the vehicle-mounted device. The ground system of the embodiment of the disclosure may further include a TSRS that transmits line topology data to the vehicle-mounted device. It should be noted that, in the embodiments of the present disclosure, data transmission between any two or more devices is not meant to be a direct data transmission between devices, but may be an indirect transmission between other devices serving as intermediate/relay devices, unless specifically stated otherwise; although the line topology data transmitted between the TSRS and the vehicle-mounted device is exemplified, it is not limited to only between the vehicle-mounted device and the TSRS, and any device that needs to transmit the line topology data in the embodiments of the present disclosure may be applied to the embodiments of the present disclosure.

In the embodiment of the disclosure, the track line topology is described by using line topology data. In the TSRS, the line topology data formed includes line element atomic data and line element data addresses, as exemplarily shown in the following table:

TABLE 1 line topology data

Line element data address

Line element atomic data

The line element data address is the element address, and the line element atomic data is composed of fields such as an address of a previous line element of the line element, an address of a next line element of the line element, a line element type, a line element number and the like. The following table exemplarily shows the line element atomic data structure:

TABLE 2 atomic data for line elements

The line element atomic data describes the identity of the line element (i.e., the line element type, the line element number) and the two-dimensional topological relationship of the line element (the line element's previous line element address, the line element's subsequent address). The size of the data structure can be set according to actual needs. As shown in table 1, in the embodiment of the present disclosure, the line element atomic data is designed as a 3-byte data structure, the 1 st byte describes the data address of the previous line element connected to the present line element, the first 8 bits of the 2 nd byte are the types of the present line element (the type definition is shown in table 3), the last 24 bits are the number (the full-line unique number) of the present line element, and the 3 rd byte describes the number address of the next line element connected to the present line element. In the embodiment of the disclosure, the line elements comprise train control engineering elements such as annunciators, turnout tips, turnout positioning, turnout inversion, common transponders, accurate transponders, and tracks, and the front-back topological relation is obtained by designing a signal plan.

Illustratively, table 3 shows the definition of the line element types, including the values of the line elements and the corresponding meanings:

TABLE 3 line element type definition

Based on the above definition, the line topology can be described using line topology data. Fig. 3 illustrates a topology diagram of line elements, and the line topology of fig. 3 is described by the above line topology data as shown in the following table:

table 4 line topology data example

In the above-mentioned line topology data structure of the embodiment of the disclosure, for example, the element numbers are represented by english alphabets, and the english alphabets are different to distinguish the same type elements in different positions. Still taking the example of 1G pickup in fig. 3, the element types of the transponders JZ, FJZ1, DW1, CZ1 are all 4 (normal transponders), and the four different sets of physical transponders are characterized by different element numbers. Marked with bits in the actual line topology data structure. Meanwhile, for ease of understanding, the element numbers of 24 bits are indicated by element names in the above table 4. As can be seen from the above line topology data, in fig. 3, the data address location of the normal transponder JZ of the line element is 0, and the address of the subsequent line element (i.e., the signal X) is 3; the address of the previous line element (i.e., the normal transponder JZ) of the line element signaller X is 0, and the address of the next line element (switch point sw1_cj) is 6; and establishing association relations among all the line elements in fig. 3 in turn, and finally describing the topology of the line elements through the line topology data. In the embodiment of the disclosure, since the line element topology data describes the front-back association relationship between the elements in the line, the position and the state of one or more elements in the line can be obtained based on the line topology data. Taking the above transponder sequence list transponder JZ- > transponder FJZ1- > transponder DW1- > transponder CZ1 as an example (where "- > denotes a tandem sequence relationship), transponder JZ is retrieved in the line topology data, signal X is obtained by address 3 of JZ, sw1_cj is obtained by address 6 of X, and sw1_cj has two addresses 9 and 42, respectively, corresponding to the inversion and positioning of switch SW 1. According to the above mode, the transponder FJZ1 can be obtained by the backward retrieval of the inversion of SW1, and the link transponder JZ- > signal machine X- > switch SW1- > signal machine S1- > transponder FJZ1 is determined, and the switch SW1 can be confirmed to be the inversion until the transponder CZ1 is retrieved. Namely, each line element and state in the driving license MA, including the turnout position and the state of the signal machine, are obtained.

In the embodiment of the disclosure, the line topology data contains information such as types and addresses of front and rear elements on the line, and whether the data is a data sender or a data receiver, the position relation among the elements in the line can be clearly described, so that the problem that a plurality of data are needed to clearly express the elements in the line is avoided, and the resources occupied by a large amount of data transmission and the processing burden of processing the plurality of data are reduced.

For example, in the rail train control system, the accurate rail line element position relation can be transmitted based on the method, and the method plays an important role in running permission check: and the vehicle-mounted equipment calculates a track number and a passing mark on the running permit according to the running permit sent by the RBC and the line topology data sent by the TSRS, judges whether the track number and the passing mark obtained by calculation are consistent with the track number and the passing mark received by the vehicle-mounted equipment, and considers that the running permit check is successful when the track number and the passing mark obtained by calculation are consistent with the track number and the passing mark received by the vehicle-mounted equipment.

For example, in the unmanned intelligent driving field, a vehicle runs along a highway, and needs to be judged through various highway elements along the line, such as wireless nodes, control devices and the like on the line, and the positional relationship and state among the various line elements can be acquired more clearly and quickly through the line topology data in the embodiment of the disclosure.

Although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A line topology data transmission method, wherein,

the formed line topology data frame is transmitted, wherein,

2. The method of claim 1, wherein,

the line element data address is the present element address, and the line element atomic data is composed of the previous line element address, the present line element number, the present line element type and the next line element address.

3. The method of claim 2, wherein,

the length of the line element data address is 1 byte;

the length of the latter line element address is 1 byte.

4. A method according to claim 2 or 3, wherein,

the length of the line element number is 8 bits.

5. A method according to any one of claim 1 to 3, wherein,

the line elements include one or more of a signal, switch point, switch positioning, switch repositioning, normal transponder, precision transponder, and track.

6. A line topology data receiving method, wherein,

a line topology data frame is received, wherein,

7. The method of claim 6, wherein,

8. The method of claim 7, wherein,

the length of the line element data address is 1 byte;

the length of the latter line element address is 1 byte.

9. The method according to claim 7 or 8, wherein,

the length of the line element number is 8 bits.

10. The method according to any one of claims 6-8, wherein,

11. A line topology data transmitting apparatus includes a transmitting unit, wherein,

12. The transmitting apparatus of claim 11, wherein,

13. A line topology data receiving device, the receiving device comprising a receiving unit, wherein,

the receiving unit is configured to receive a line topology data frame, where,

14. The receiving device according to claim 13, wherein,