WO1996024517A1

WO1996024517A1 - Process for simulating dynamic situations in a railway network

Info

Publication number: WO1996024517A1
Application number: PCT/DE1996/000213
Authority: WO
Inventors: Thomas Wolpensinger
Original assignee: Siemens Aktiengesellschaft
Priority date: 1995-02-10
Filing date: 1996-01-31
Publication date: 1996-08-15
Also published as: DE19505505C1

Abstract

The railway network is imaged by selecting and arranging individual objects (EO1 to EO9) according to the network topology. The individual objects (EO1 to EO9) can be selected from a supply of standardized individual objects and each represents a line element (SEL, SELS) with its connection points in the form of linkage points. The corresponding linkage points of adjacent individual objects are associated with each linkage point (ANK) of a selected individual object. According to a vehicle movement to be simulated, individual objects lying on the vehicle path are characterized successively as occupied or free again. Data (DAT) describing the dynamic situations are prepared in a form which can be processed by a higher-order control centre (LS).

Description

description

Process for simulating dynamic situations of a route network

The invention is in the field of higher-level control centers or systems with individual signal boxes arranged downstream via a process coupling, each of which controls or sets a route network or an area of a route network in a known manner and which, as such, adjusts z. B. from the essay "VERFAHRENSGESERTE MELDEBILDANZEIGE" by H. Forstreuter and A. Weitner-von Pein in SIGNAL UND DRAHT, 86 (1994), H10, pp. 320-324. The invention relates in particular to the development, project planning and testing of control centers and remote controls for railway signal boxes. This poses particular problems in dynamic situations (eg train tracking or train steering) that require a special response from the signal boxes and / or the track systems to operations on the control center. Since real signal boxes and track systems installed on site are not available for the laboratory-based development and testing of control centers or control systems, it has so far been customary to run through reactions of the signal boxes or track systems by manual input; however, this simulation method quickly reaches its performance limit with an increasing number of dynamic processes.

DE 40 21 360 C2 describes a method for realizing the route search in a signal box. The real track elements according to track topography are reproduced by standardized individual objects, which are represented by assigned search direction and direction of travel-specific data records. When searching for or checking the possibility of positioning a route, the data records of the individual route elements are accessed in accordance with the intended direction of travel, the data records each contain references to the following route elements in the direction of travel.

With the known method, all route elements involved in the route to be formed can be determined, even if the search or driving direction is reversed in the course of the route. Dynamic situations of a route network that is to be monitored and possibly controlled by a higher-level control center can neither be simulated nor visualized using the known method.

The object of the invention is to create a method for simulating dynamic situations of a route network, the operations to be monitored and possibly controlled by a superordinate control center in one

Route network, in particular train journeys, functions of the external system (e.g. switches, signals) and signal box logic (route formation) can simulate and visualize.

This object is achieved according to the invention by a method for simulating dynamic situations of a route network, in which a selection of standardized individual objects is given, each of which represents a route element, has at least partially manipulable attributes about their characteristics and / or states and has starting points, which each represent connection points of the route element, in which the route network is mapped by route topology-appropriate selection and arrangement of individual objects, in which each connection point of each selected individual object is assigned the corresponding connection point of the adjacent individual object, so that a route topology-related connection of all selected individual objects is created, in which a vehicle movement is simulated by the individual objects specified by a predetermined movement path according to the individual object linkage cessive as currently occupied and free again are marked and in which the data describing the dynamic situations are provided in a form that can be processed by a higher-level control center.

An essential advantage of the method according to the invention is the use of predetermined standardized individual objects, which can be selected, for example, from a library. The standardized individual objects can be treated and processed as the smallest unit ("finite elements"), whereby their orientation remains adjustable in the case of a predefined configuration. The arrangement of the individual objects can preferably take place in an absolute grid using absolute position coordinates, so that each individual object can be marked, found and changed as required quickly. The relative linking of each individual object via its connecting points with the corresponding connecting points of the neighboring individual objects ensures a closed replication of the route network with a topology true to the original. The individual objects are preferably marked (for example on a display device), as long as the corresponding connecting points of neighboring individual objects are not assigned to all of their connecting points. This assignment is preferably carried out using relative coordinates, each of which defines the relative linkage of an individual object with its neighbors. A simulated vehicle movement that begins with any individual object can then only take place according to the linked individual objects (route elements). The dynamic situations are described by data which advantageously allow the method according to the invention to be applied to any hierarchical levels of the overall system.

A first essential area of application of the method according to the invention is to check whether messages from the track systems, in particular with signal boxes that are operated in local operation, arrive correctly at the control center. In This advantageously allows both the control center itself and upstream data transmission channels and data processing devices to be checked. A further preferred application of the method according to the invention is the simulation of people working in remote control mode

Signal boxes, whereby control commands are issued to the track systems by the control center and a malfunction can be simulated by targeted manipulation of the attributes of the properties or states of the represented track elements. This makes it easy to check without real signal boxes and track systems whether the control center detects such disturbances and reacts appropriately. A malfunction can be simulated, for example, that a certain switch does not reach its end position or that a signal lamp is defective.

Based on the real track systems, several can

Individual objects are combined into a track circle and treated as a unit by the simulated signal box.

The invention is explained in more detail below with the aid of a drawing; show it:

1 shows schematically a track system with signal box and control center, FIG. 2 shows an illustration of a route network,

FIG. 3 individual objects and a section from FIG. 2,

Figure 4 data and attributes associated with individual objects

Figure 5 shows a simulated vehicle movement.

FIG. 1 shows a control center or control center LS known per se with several human-machine interfaces (human-machine interface) MMI, a train control computer ZLR, a communication center COM and a process coupling PAK, which in a known manner via a local communication network (Local Area Network) LAN communicate. The communication point COM is used by the process (signal boxes, track were to convert the signaling-type-specific data arriving via the process coupling PAK or data coming from the control center LS into a standardized process-mapping or into the signaling-typical data format.

A signal box SW is connected via the process coupling PAK via a data line DL and a suitable interface SCH with a downstream digital input / digital output unit DE / DA. In the so-called local operation, the signal box SW is operated on-site by an operator and fulfills control and positioning tasks such as, for example, action on corresponding control elements (e.g. switches, signals). B. the setting of routes. Furthermore, the signal box monitors information and messages coming from the track system of the route network SN, for example about the position of switches, signal positions, signal lamp defects etc. This information is sent to the control unit in a suitable data format via the unit DE / DA place passed on. In the so-called remote control mode, the signal box SW is unoccupied and is controlled by the control center itself for the immediate execution of commands on the control center side. As further indicated, several signal boxes SW can be coupled to the process coupling PAK in a corresponding manner; between the signal boxes and the process coupling PAK (as indicated), a higher-level signal box SWU can additionally be arranged.

In practice, problems arise in particular in systems which are already in operation when a control center is to be newly developed or modified and then installed. In the development and project planning of control centers, extensive tests are necessary, which require corresponding requirements or reactions of the signal boxes or track systems. In order to be able to carry out such tests independently of existing signal boxes and track systems, a simulation SIM of the dynamic situation of a route network and a signal box or is carried out according to the method according to the invention (as indicated by dashed lines) generated several signal boxes and fed in readable data format via the interface SCH to the control center LS. The SIM simulation provides the data describing the dynamic situations DAT in a form that is based on the respective hierarchical level of the feed into the entire system. In FIG. 1, solid lines represent an infeed via the interface SCH in front of the unit DE / DA, while an alternative infeed directly to the data line DL is indicated. In this case, the data is from the DAT

Process coupling PAK adapted standardized data format. A first possibility of checking and testing the control center LS is to check the correct display of the simulated situations on the screens of the human-machine interfaces MMI.

To simulate the real route network SN shown in FIG. 1 and the interlocking SW, the route network SN is first simulated according to the method according to the invention and, for example, shown on a data display device DSG as an image SN '. For this purpose (FIG. 2), the smallest unit (“finite elements”) is provided by standardized individual objects EOL to E09, which can be selected from a library BIB and have a predetermined configuration. For example, the track element SEL (FIG. 1) "branches off to the left

Switch "is represented by the individual object EOl. Each individual object can be adjusted in its orientation by rotation, while the configuration is unchangeable. A right-branching switch is represented by the individual object E02. Exemplary are individual objects E03 to E06 as representatives for various branchless ones Line elements (straight line, kinking straight line, line end piece) are shown, further individual objects E07 to E09 represent line elements SELS with additional signaling. According to the real specification of the route network SN, the section AU of the route network SN encircled in FIG. 1 in FIG. 2 is composed of individual objects. For absolute addressing of the individual objects in an absolute raster, which correlates, for example, with the raster of the data display device DSG, the absolute raster position 0.3 is assigned to the individual object E03; the individual object E03 is arranged once more at position 1.3 and the individual object EO1 rotated at position 2.3. The section element SELS that is actually provided with a signal (FIG. 1) is represented by the (180 ° rotated) individual object E07 at the absolute grid position 0.4. In this way, an image of the entire route network to be considered is generated by selection and mosaic-like composition of the individual objects representing the route elements SEL, SELS contained in the route network.

According to the connection points ANP (FIG. 1) of the represented route element, each individual object has connection points ANK. Thus, the individual object EOl has three connection points ANK, each of which corresponds to a connection point ANK of an adjacent individual object.

With reference to FIG. 3, the representation and data-related description of the connecting points will now be explained using the example of the four individual objects, which are outlined in dash-dot lines in FIG. The first individual object E07 with the absolute coordinates AK 0.4 (hereinafter abbreviated as {E07 [0.4]}, like any other individual object, has six potential connection points which are identified with relative coordinates RK 0.0 to 2.2 Since the route element represented by the individual object {E07 [0,4]} is a straight track section, there are actually only two connecting points ANK with the relative coordinates RK 0.1 and 2.1 Coordinates 1,4 {E01 [1, 4]} represents the route element SEL (switch according to FIG. 1) and therefore has three connection points with the relative coordinates 0.1; 2.0; 2.1 on. The single object {E03 [2,4]}, which adjoins on the right, represents two connecting points with the relative coordinates RK 0.1; 2.1 on. The single object EOl (absolute coordinates AK 2,3) {E01 [2,3]} has connection points with the relative coordinates RK 0.1, 0.2, 2.1.

The corresponding connection points 2.1 and 0.1 of the individual objects {E07 [0,4]}, {E01 [1,4]] are assigned to one another according to FIG. 4 by relative linking. As for the individual objects {E07 [0,4]} _; {E01 [1,4]} _; {E03 [2,4]}, shown explicitly as an example, the connection point with the relative coordinates 0.1 of the single object {E01 [1, 4]} is the connection point 2.1 of the left-hand neighbor {E07 [0,4]} assigned.

Correspondingly, the other connecting points 2.0 and 2.1 of the individual object {E01 [1, 4]} are the connecting points 0.2 and 0.1 of the neighboring individual objects {E01 [2.3]} and {E03 [2.4] } assigned. Corresponding assignments are indicated for the individual objects {E07 [0,4]}, {E03 [2,4]>. The respective absolute and relative coordinates AK and RK are entered in an individual data record DAT for each individual object. The data records DAT further comprise attributes ATT, which represent the properties and / or states of the individual objects or the route elements represented by them. The states of the signal of the individual object E07 can thus be described by detailed attributes H, S, L, G ("stop detector, fault, signal lamp defective, signal blocked"). In the present case, the signal on hold should work correctly, so that the attribute H has an entry "1"; the remaining attributes S, L, G are "0". In a corresponding manner, e.g. B. the single object EOl (turnout) attributes about the location (left, right, left revolving, right revolving) of the turnout Ll, L2, L3, L4, via lock, lock message or fault V, SM, ST assigned. In addition, each individual object has an attribute "occupied" B which is set ("1") when a vehicle is simulated as being on a route element represented by it.

A vehicle movement is explained below with reference to FIG. 5, which shows a section of the illustration in accordance with FIG. 2, wherein several individual objects are combined to form track circles GK1 and GK2. In reality, the track circuits GK1, GK2 are treated accordingly as a unit by the simulated signal box, so that when a single individual object is occupied, the entire track circuit is regarded as occupied. In a first position I there should be a train symbolized by locomotive LO and wagon WG on the individual objects {E03 [2,4]}, {E01 [1, 4]}. Accordingly, the track circle GKl is reported as occupied because the individual objects {E03 [2,4]}, {E01 [1,4]] are components of this track circle GKl. In position II the train has advanced with the release of the single object {E01 [1, 4]} and now occupies the single object {E07 [3,4]}. Now both the GKl track group and the GK2 track group are reported as occupied because the individual objects occupied

{E03 [2,4]} (track circle GKl) and {E07 [3,4]} (track circle GK2) belong to different track circles GKl, GK2. When advancing to position III, the individual objects {E07 [3,4]>, {E03 [4,4]> are successively occupied so that the track circuit GK1 is released, but the track circuit GK2 is still reported as occupied. The vehicle movement (dynamic situation) is simulated in that the individual objects currently successively occupied by the vehicle are identified with the attribute B as "occupied" (B = "1") and this identification corresponding to the direction of movement as the movement progresses the single object link is broken again.

With the method according to the invention, malfunctions of the simulated route network or of the signal boxes can be simulated by targeted manipulation of the attributes and thus without Real signal boxes or track systems test the reaction of the tail unit to be tested. In addition, the method according to the invention can preferably be used for training or for demonstrating control centers.

Claims

Claim

1. Method for simulating dynamic situations of a route network (SN), - in which a selection of standardized individual objects (EOl to E09) is specified, each of which - represents a route element (SEL, SELS), - at least partially manipulable attributes (ATT) have about their properties and / or states and - have connecting points (ANK), each representing connecting points of the route element (SEL, SELS),

- in which the route network (SN) is mapped by selecting and arranging individual objects (EOl to E09) in accordance with the route topology, - in the case of each connecting point (0,1) of each selected individual object (E01 [1,4]), the corresponding connecting point ( 2.1) of the adjacent individual object (E07 [0,4]), so that a route topology-related linkage of all selected individual objects is created, - in which a vehicle movement is simulated by the individual objects specified by a predetermined movement path according to the individual object linkage successively as currently occupied and freely marked again and

- In which the data describing the dynamic situations (DAT) are provided in a form that can be processed by a higher-level control center (LS).