JP2016060420A - Track circuit state determining device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a track circuit state determining device that decides the correctness of a state change of a track circuit even about a terminal track in addition to a normal track.SOLUTION: An adjacent track circuit specific value (1T and 3T or 2T and 4T) is set in the data item of a left side track and a right side track, if a target track is the normal track (2T and 3T), or a boundary track specific value or a dead end track specific value is set in the data item of the left side track out of a vehicle tracking range if the target track is the terminal track (1T), about track circuit regulation data 14 for identifying a logical state and an adjacent track circuit of both sides every target track. A track circuit state determination program 13 determines a logical state of the target track circuit on the basis of a vehicle tracking processing logic if the target track is a normal track or a dead end track. Alternatively, a vehicle tracking processing logic is avoided and logical state of the target track circuit is determined if the target track is the boundary track. As a result, the correctness of the state change of the track circuit is decided about the dead end track among terminal tracks, and erroneous determination in the train intercommunication can be avoided about the boundary track among the terminal tracks.SELECTED DRAWING: Figure 1

Description

The present invention inputs a binary physical state related to the presence / absence of a train from a track circuit provided in each section of a vehicle tracking (train tracking) target on a railroad track, and each track circuit based on its transition mode. It is related with the track | orbit circuit state determination apparatus which classify | categorizes and determines the logical state of this from the physical state based on vehicle tracking processing logic.
In the present application, the track portion belonging to the section located inside rather than the end of the vehicle tracking range is called “normal track”, and the track portion belonging to the section positioned at the end of the vehicle tracking range is called “terminal track”. In addition, such a terminal track that has a train running track outside the vehicle tracking range is called a “boundary track”, and a terminal track that has a dead end outside the vehicle tracking range is called “ This is called a “stop orbit”.

  Many of the electronic interlocking devices installed at railway stations, stops, etc. have a vehicle tracking function based on vehicle tracking processing logic (see Non-Patent Document 1, for example), and such a device (track circuit state determination device) is Assuming that the track of the vehicle tracking range is divided and a track circuit is provided in each section, a “fall” state for indicating the train line of the corresponding section from each of the plurality of track circuits, and the corresponding section In order to more accurately determine the state of each track circuit based on the transition state of the physical state, while inputting the binary physical state, which is the “top” state, indicating the train non-existing line, as track circuit information The logic state of the track circuit is determined. At that time, the logic state is divided into, for example, five values.

  Specifically, if the rear track circuit is dropped when the train enters the front track circuit from the rear track circuit and the physical state of the front track circuit changes from the uphill state to the dropped state, the forward track circuit When the rear track circuit is not dropped, the logic state of the front track circuit is set to the “illegal drop” state. In addition, if the forward track circuit is dropped when the train advances from the backward track circuit and the physical state of the rear track circuit changes from the fall state to the uphill state, the logical state of the rear track circuit is first changed to “invalid”. After the 2.4 second has elapsed in that state, the logic state of the rear track circuit is set to the “definite lift” state, but if the front track circuit has not fallen, the rear track The logic state of the circuit is set to the “illegally up” state, and after 120 seconds in that state, the logic state of the rear track circuit is set to the determined up state.

  Furthermore, when there is a retrograde operation, the condition check changes to “any one of the adjacent track circuits should be dropped on both the fall and the saddle” (see Non-Patent Document 1), so the physical state of the target track circuit is If any of the adjacent track circuits has fallen when it has fallen from the heel-up state, the logic state of the target track circuit is set to the definite fall state, and if none of the adjacent track circuits have fallen, Change the logic state of the target track circuit to an illegal fall state. Also, if any of the adjacent track circuits is falling when the physical state of the target track circuit is changed from the fall state to the uphill state, first, the logical state of the target track circuit is changed to the indefinite uplift state. After 2.4 seconds in the state, the logic state of the target track circuit is confirmed and set to the up state. However, if none of the adjacent track circuits have fallen, the logic state of the target track circuit is incorrect. In the upper state, after 120 seconds have passed in that state, the logical state of the target trajectory circuit is changed to the definite upper state.

Overview of Signals for Railway Electrical Engineers “Interlocking Device” Revised 2nd Edition, Japan Railway Electrical Engineering Association, issued July 1, 2004, p. 146-147

As described above, in the track circuit state determination by the conventional device, in order to determine the validity of the state change of the track circuit, the vehicle tracking process for collating the train line detection result by the track circuit with the section of the track where the train can travel. The logical state of the target track circuit is determined based on the logic. Specifically, the validity condition is that one of the adjacent track circuits on both sides is falling.
For this reason, when making an accurate determination, track circuit information is acquired from both adjacent track circuits on both sides of the target track circuit.
When the target track circuit is related to the normal track, the corresponding section is located not on the end of the vehicle tracking range but on the inner side, and the track circuit exists in both of the sections on both sides. Based on the logic, the logic state of the target track circuit is accurately determined.

  However, when the target track circuit is related to the terminal track, the corresponding section is located at the end of the vehicle tracking range, and there is a track circuit in the side of the vehicle tracking range in both side sections. Because the track circuit that outputs track circuit information does not exist or the track circuit information cannot be used even if there is a track circuit, the section corresponding to the terminal track Depending on the situation, the vehicle tracking may not be able to be performed accurately with respect to trains that travel between the vehicle and the adjacent section outside the vehicle tracking range.

For this reason, in the conventional track circuit state determination device, it is avoided for the terminal track to determine the validity of the state change of the track circuit.
Nonetheless, there are two types of terminal tracks: boundary tracks where train tracks are connected outside the vehicle tracking range, and dead tracks where the vehicle tracking range is a dead end, There is a difference between the two tracks regarding whether or not the train can travel outside the vehicle tracking range.
Therefore, it is a technical problem to realize a track circuit state determination device that determines the legitimacy of the state change of the track circuit not only for the normal track but also for the terminal track by improving by paying attention to such a difference. It becomes.

  The track circuit state determination device of the present invention (Solution means 1) was devised to solve such a problem, and is a circuit that inputs each physical state from a plurality of track circuits belonging to the vehicle tracking range. Means for holding track circuit defining data comprising data items for indicating the logical state of the target track circuit for each of the track circuits and data items for specifying adjacent track circuits on both sides of the target track circuit; , For each track circuit related to the normal track inside the vehicle tracking range of the track circuit, the target track circuit according to the logical state of the target track circuit, the logical state of the adjacent track circuit, and the transition of the physical state of the target track circuit In a track circuit state determination device including a track circuit state determination unit that changes a logic state of a track circuit based not only on a normal state but also on an illegal state based on vehicle tracking processing logic, The track circuit specification data specifies whether the track circuit related to the terminal track at the end of the vehicle tracking range in the track circuit is a boundary track in which train tracks are connected outside the vehicle tracking range or not. The track circuit state determining means is configured to respond to a logical state of the target track circuit, a logical state of the adjacent track circuit, and a transition of the physical state of the target track circuit for the track circuit related to the dead track. Thus, the logical state of the target track circuit is shifted not only to the normal state but also to the illegal state based on the vehicle tracking processing logic.

  Further, the track circuit state determination device of the present invention is (tracking means 2), the track circuit state determination device of the above solution unit 1, wherein the track circuit specifying data specifies an adjacent track circuit for any of the track circuits. Two adjacent track circuit identification data items corresponding to both sides are provided, and for the track circuit related to the dead track, the data value indicating the dead track is specified for the two adjacent track circuit identification data. It is held in one of the data items, and the data value indicating the boundary track is held in one of the two adjacent track circuit specifying data items for the track circuit related to the boundary track. .

  Further, the track circuit state determination device according to the present invention is (tracking means 3), the track circuit state determination device of the above solution units 1 and 2, wherein the track circuit state determination unit relates to a boundary track among the track circuits. The thing is characterized in that the logical state of the target track circuit is changed in accordance with the logical state of the target track circuit and the transition of the physical state of the target track circuit.

In such a track circuit state determination device of the present invention (solution 1), the track circuit state determination is performed after the terminal track is distinguished from the boundary track or the dead track by the track circuit definition data. Depending on the means, not only the track circuit of the normal track, but also the track circuit of the stop track, the state determination based on the vehicle tracking processing logic is performed, so that the stop track is normal even if not all of the terminal tracks. Not only the state but also the illegal state will be determined. In addition, the stop track is different from the boundary track where the train can go outside the vehicle tracking range, and the vehicle tracking processing logic is established because there is no train going outside the vehicle tracking range. The state determination is made finely and accurately.
Therefore, according to the present invention, it is possible to realize a track circuit state determination device that determines the validity of the state change of the track circuit if the terminal track is not a boundary track but a dead track.

  In the track circuit state determination apparatus of the present invention (solution 2), for a terminal track having only one adjacent track circuit, two adjacent tracks as in a normal track having two adjacent track circuits. A data item for specifying a circuit is allocated, but one of the data items for specifying an adjacent track circuit that does not need to hold a data value for specifying an adjacent track circuit holds a data value indicating that it is a boundary track. If it is a dead end orbit, a data value indicating that is held. Therefore, a data value for specifying each track circuit belonging to the vehicle tracking range, a data value indicating that the target track circuit is related to the boundary track, and that the target track circuit is related to the stop track By assigning different identifiable values to the indicated data values, the data access procedure of the track circuit state determining means can be simplified in addition to the structure of the track circuit defining data.

  Furthermore, in the track circuit state determination device of the present invention (solution 3), the state transition of the target track circuit is determined without depending on the state of the adjacent track circuit for the terminal track related to the boundary track. Is done. Therefore, the validity of the state change of the track circuit based on the vehicle tracking processing logic is avoided, so that the train moves back and forth between the section corresponding to the terminal track and the adjacent section outside the vehicle tracking range. Therefore, there is no possibility that an erroneous determination result indicating that the track circuit is in an illegal state is obtained.

1 shows the structure of a track circuit state determination device according to Example 1 of the present invention, where (a) shows an example of track segmentation in the vehicle tracking range, (b) shows a block diagram of the track circuit state determination device, and (c), (d) ) Are examples of track circuit defining data. It is a state transition diagram related to a track circuit state determination program that can be used for any of a boundary track, a closing track, and a normal track. FIG. 5A is a state transition diagram related to a track circuit state determination program for a boundary track, and FIG. 5B is a state transition diagram related to a track circuit state determination program that can be commonly used for a stop track and a normal track. An example of operation when the terminal trajectory is a boundary trajectory is shown, and (a) to (g) are the physical state of the trajectory circuit in each section and the trajectory circuit defining data. An example of operation when the terminal track is a closing track is shown, and (a) to (c) are the physical state of the track circuit and track circuit defining data in each section. The other example of operation when a terminal track | orbit is a closing track | orbit is shown, (a)-(b) all are the physical state and track circuit regulation data of the track circuit of each area. The continuation of the above-mentioned other operation examples is shown, and (a) to (g) are the physical state of the track circuit and track circuit defining data in each section.

With respect to such a track circuit state determination apparatus of the present invention, a specific mode for carrying out this will be described with reference to Example 1 below.
The first embodiment shown in FIGS. 1 to 6 embodies all the above-described solving means 1 to 3 (claims 1 to 3 at the beginning of the application).
In the illustration, for the sake of simplification, the mechanical structure and detailed electric circuits are omitted from illustration, and symbol diagrams and block diagrams are often used, and those necessary or related to the explanation of the invention. The figure is shown with the center.

A specific configuration of the track circuit state determination device according to the first embodiment of the present invention will be described with reference to the drawings.
FIG. 1A is a schematic symbol diagram in which a vehicle tracking range on a track 5 is divided into N sections 1T to NT and a track circuit is installed in each section, and FIG. 1B is a track circuit state determination device 10. (C) is an example of the track circuit defining data 14 when the terminal track section 1T is a boundary track, and (d) is a track when the terminal track section 1T is a stop track. It is an example of the circuit definition data 14.

FIG. 2 is a state transition diagram related to the track circuit state determination program 13 that can be used for any of the boundary track, the dead track, and the normal track.
Further, FIG. 3A is a state transition diagram relating to the boundary track circuit state determination program 13a in which the boundary track portion is separated from the track circuit state determination program 13, and FIG. 5 is a state transition diagram according to a normal track circuit state determination program 13b for a normal stop, in which a portion that can be shared by a normal track and a normal track is separated.

  Prior to the description of the track circuit state determination apparatus 10, the state of the track 5 of the railroad, which is the premise of its installation, will be described (see FIG. 1 (a)). For example, it is divided into N pieces, and a track circuit is provided in each of the sections 1T to NT. Any of the track circuits may be known ones (for example, refer to the signal overview for railroad electricians “Railway Circuit” issued by Japan Railway Electrical Engineering Association), but detailed explanations are omitted. When i is one of 1 to N and a train (vehicle) is on the track part of the section iT, and when it is accurately sensed, the track relay iTR is dropped, while the train is on the track part of the section iT. If it is not sensitive to it, the track relay iTR is lifted. For the portion of the track 5 outside the vehicle tracking range, track circuit information relating to the presence / absence of the train is not provided to the track circuit state determination device 10.

The track circuit state determination device 10 (see FIG. 1B) includes an input circuit 11 and a logic unit 12, and may include an output circuit for a state determination result depending on the application purpose.
The input circuit 11 inputs track circuit information indicating whether the track relay 1TR to NTR is in a falling state or a lifted state as the physical state of the track circuit to which the track relay belongs. When the unit 12 is composed of a relay circuit that handles a relay signal, it is embodied by a relay relay or the like. When the logic unit 12 is composed of an electronic circuit that handles a signal having a voltage lower than the relay signal, a latch circuit or It is embodied by a level conversion circuit.

  The logic unit 12 (see FIG. 1B) may be embodied by a relay circuit. In this example, the logic unit 12 is embodied by a logic operation circuit with a memory such as a programmable microprocessor system or a fail-safe computer. A track circuit state determination program 13 as track circuit state determination means is installed in the program memory, and track circuit definition data 14 is allocated to a data memory as means for holding it.

  The track circuit defining data 14 (see FIGS. 1B to 1D) is composed of data groups in a simple tabular format (table, two-dimensional array), of which one row (record) relates to one track circuit. Several data items (items) are assigned. In this example, “target trajectory” data item, “logical state” data item, “duration” data item, “left trajectory” data item, and “right trajectory” Data items are assigned. Further, the number of data (records) for one line, that is, the number of lines, is N or more, which is the number of sections 1T to NT belonging to the vehicle tracking range, and N lines are used.

  The target trajectory data item holds data for specifying a target trajectory circuit that is a processing target for state determination or the like. In this example, the section name “iT” (of 1T to NT of the target trajectory circuit). Any one identification symbol) is set in advance as fixed data referred to by the track circuit state determination program 13 in accordance with the equipment status.

  The logical state data item holds data indicating the logical state of the target track circuit, and in this example, the five logical states described above are definite fall, illegal fall, indeterminate over and definitive over A data value indicating any one state of the illegal fraud is stored. For any track circuit, the logic state is update target data that is updated as needed by the track circuit state determination program 13.

  The duration data item holds data of a duration that is a time during which the physical state of the target track circuit has continued to be the same after the most recent change. In this example, the track state determination program 13 causes the physical state to be stored. It is cleared (reset, initialization) at the time of change, and is counted up (timed) by a timer program (not shown). The duration is also update target data updated as needed by the track circuit state determination program 13.

  Each of the left orbit data item and the right orbit data item is an adjacent track circuit specifying data item that holds data for specifying adjacent track circuits on both sides of the target track circuit. This is a data item for specifying the adjacent track circuit on the start side and the up side, and the right track data item is a data item for specifying the adjacent track circuit on the right side (the end point side and the down side). As fixed data referred to by the program 13, it is set in advance corresponding to the equipment status.

  In this example, if the target track circuit is related to section 1T, the right track belongs to section 2T, and if the target track circuit is related to section 2T, the left track belongs to section 1T and the right track is set to section 3T. If the target track circuit is related to the section 3T, the left track belongs to the section 2T and the right track belongs to the section 4T (see FIG. 1A). In this case (FIGS. 1C and 1D) )), The section name “2T” is set in advance in the right-side track data item related to the target track circuit in section 1T, and the section name “1T” is set in advance in the left-side track data item related to the target track circuit in section 2T. In addition, the section name “3T” is set in advance in the right trajectory data item, the section name “2T” is set in advance in the left trajectory data item related to the target trajectory circuit in section 3T, and the right trajectory data item And so on because the section name "4T" is set. A typical example is to assign integer values “1” to “N” to 1T to NT.

  As described above, the track circuit defining data 14 is for specifying two adjacent track circuits in the row of the target track circuit because there are adjacent tracks on both sides for the track circuits related to the sections 2T, 3T, 4T,. The section name is set in advance as an identification symbol of the corresponding adjacent track circuit in any of the data items. However, for the track circuit related to the sections 1T and NT which are terminal tracks, the adjacent track exists only on one side. Of the two adjacent track circuit identification data items in the circuit row, the adjacent track circuit identification symbol is set only on the adjacent track existing side, and the adjacent track circuit identification data item in the target track circuit row is the adjacent track. On the non-existing side, a data value indicating whether the target track circuit is a boundary track or a dead track is set.

  Specifically, since the section 1T is classified as a boundary trajectory in the terminal trajectory and the target trajectory circuit is related to the boundary trajectory (see FIG. 1C), it corresponds to the target trajectory circuit. In the adjacent track circuit specifying data item on the adjacent track nonexistent side of the two adjacent track circuit specifying data items, the data value “boundary” indicating that the target track circuit is related to the boundary track is fixed data. It is set in advance. On the other hand, if the target track circuit is related to the dead track because the section 1T is classified as a dead track in the terminal track (see FIG. 1D), it corresponds to the target track circuit. Of the two adjacent track circuit specifying data items, the adjacent track circuit specifying data item on the adjacent track non-existing side has a fixed data value “stop” indicating that the target track circuit is related to the stop track. Is preset. Specific examples of “boundary” and “stop” are integer values other than “1” to “N” described above and are different from each other. For example, if N is “253” or less, “254” or “255”. And so on.

The track circuit state determination program 13 may be dedicated to each of the N target track circuits, and is illustrated by its image (see FIG. 1 (b)). Unlike the data track circuit definition data 14 that can be changed individually in each track circuit, one program code is associated with a plurality of track circuits having the same function, and a plurality of processes (tasks) are started or time slots Can be repeatedly executed, so that either one of a configuration example in which one type of program can be shared by all N track circuits (see FIG. 2) and each group of track circuits divided into two groups. A configuration example (see FIG. 3) using two types of programs that can be shared on one side will be described.
Note that since each program changes the logical state of the target track circuit in accordance with the transition of the physical state of the target track circuit, a state transition diagram is used to illustrate each program.

  First, the case where all track circuits are shared will be described (see FIG. 2). The track circuit state determination program 13 determines that the target track circuit is in a state where the target track circuit is in a definitive uplift state where the train is absent. While the physical state is rising, the final rising state is maintained, but when the physical state of the target track circuit falls, the target track circuit is unconditional if the target track circuit is a boundary track, and the target track circuit is the dead track. Or if it is a normal track, if any of the adjacent track circuits is in a definite fall state or illegal fall state, the logic state of the target track circuit is changed to a definite fall state, otherwise it is changed to an illegal fall state It is like that.

  In addition, the track circuit state determination program 13 maintains the definite fall state while the physical state of the target track circuit is falling when the target track circuit is in a definite fall state in which the train track is convinced, When the physical state of the target track circuit is at the top, it is unconditional if the target track circuit is a boundary track, and if the target track circuit is a dead track or a normal track, one of the adjacent track circuits is in a definite fall state. If there is, the logic state of the target track circuit is changed to an indefinitely raised state, otherwise it is changed to an illegally raised state.

  Furthermore, when the target track circuit is in the uncertain and uncertain uplift state of the train track, the track circuit state determination program 13 has a duration of 2.4 even if the physical state of the target track circuit is up. The indeterminate uplift state is maintained for less than a second, but when the target track circuit continues to climb for more than 2.4 seconds, the logical state of the target track circuit is changed to the determined uphill state, and the target track circuit If the target track circuit is a boundary track, it is unconditional, and if the target track circuit is a dead track or a normal track, one of the adjacent track circuits is in a confirmed fall state or an illegal fall state. If there is, the logic state of the target track circuit is changed to a definite fall state, and otherwise, it is changed to an illegal fall state.

  In addition, the track circuit state determination program 13 is configured so that the physical state of the target track circuit is falling when the target track circuit is in an unauthorized drop state that is assumed to have been dropped in a situation that does not match the vehicle tracking processing logic. Maintains the illegal fall state, but changes the logical state of the target track circuit to an indeterminate lift state when the physical state of the target track circuit goes up.

  Further, the track circuit state determination program 13 raises the physical state of the target track circuit when the target track circuit is in an illegal check-up state in which it is estimated that the check has been made in a situation that does not match the vehicle tracking processing logic. Even if the duration is less than 120 seconds, the illegal uplift state is maintained. However, if the target track circuit continues to rise over 120 seconds, the logical state of the target track circuit is changed to the confirmed uplift state. When the physical state of the target track circuit falls, the logical state of the target track circuit is changed to a definite fall state.

Next, a description will be given of a case where the track circuit state determination program 13 is divided into two types: a track circuit state determination program for boundary track 13a and a track circuit state determination program for stop normal 13b (see FIG. 3).
Since the track circuit state determination program 13a for the boundary track (see FIG. 3A) is adapted to the boundary track, the data value “boundary” is set in the data item of the left track or the right track in the track circuit definition data 14. Assigned to the state determination (process, task) of the track circuit (see target track 1T in FIG. 1C).

  Then, the track circuit state determination program 13a for the boundary track (see FIG. 3 (a)) determines that if the logical state of the target track circuit is in the fixed up state, it is determined if the physical state of the target track circuit is up. The upper state is maintained, but when the target track circuit falls, the logical state of the target track circuit is changed to the definite fall state. Also, when the target track circuit is in the definite fall state, if the target track circuit is falling, the definitive fall state is maintained, but when the target track circuit is hoisted, the logic state of the target track circuit is indeterminate. Change to the up state. Further, when the logical state of the target track circuit is in the uncertain uphill state, even if the target track circuit is up, the undefined uplift state is maintained for a duration of less than 2.4 seconds. When the hoisting of the circuit continues for more than 2.4 seconds, the logic state of the target track circuit is changed to the definitive hoisting state, and when the target track circuit falls, the logic state of the target track circuit is changed to the definitive falling state. It is like that.

  On the other hand, the normal track circuit state determination program 13b (see FIG. 3B) is adapted to the stop track and the normal track. Section names are set in both the left and right track data items in the track circuit (see the target track 1T in FIG. 1D) in which the value “stop” is set and the track circuit definition data 14. It is assigned to state determination (process, task) with the track circuit (see the target tracks 2T and 3T in FIGS. 1C and 1D).

  Then, the normal track circuit state determination program 13b (see FIG. 3 (b)) indicates that when the logical state of the target track circuit is the fixed up state, if the target track circuit is up, the fixed up state is set. However, if the target track circuit falls, the logic state of the target track circuit is changed to the definite fall state if any of the adjacent track circuits is in the definite fall state or the illegal fall state. Change to the state.

  In addition, the normal track circuit state determination program 13b for the dead end maintains the definite fall state if the target track circuit is falling when the logical state of the target track circuit is the definite fall state, If any of the adjacent track circuits is in a definite fall state, the logic state of the target track circuit is changed to an indefinite rise state, and otherwise, it is changed to an illegal rise state.

  Furthermore, when the logical state of the target track circuit is in an indeterminate state, the track circuit state determination program 13 is indefinite for the duration of less than 2.4 seconds even if the target track circuit is in the indefinite state. If the target track circuit continues to rise for more than 2.4 seconds, the logical state of the target track circuit is changed to the final check-up state. If any one of them is a definite fall state or an illegal fall state, the logic state of the target track circuit is changed to a definite fall state, and otherwise, it is changed to an illegal fall state.

Further, the track circuit state determination program 13 maintains the illegal fall state if the target track circuit is falling when the logical state of the target track circuit is the incorrect fall state, but if the target track circuit is lifted, The logic state of the circuit is changed to an indefinite upper state.
Further, the track circuit state determination program 13 maintains the illegally swung state for a duration of less than 120 seconds even if the target track circuit is swung up when the logical state of the target track circuit is in the tampered state. However, if the trajectory of the target track circuit continues for 120 seconds or more, the logical state of the target track circuit is changed to the final check state, and when the target track circuit falls, the logical state of the target track circuit is determined to be the final drop state. It is supposed to change to.

  Such a track circuit state determination program 13 is a track related to each section 1T to NT belonging to the vehicle tracking range, whether it is one type of configuration example (see FIG. 2) or two types of configuration examples (see FIG. 3). Of the circuits, any of the track circuits related to the sections 2T to (N-1) T of the normal track, the track circuit related to any of the sections 1T and NT, which are terminal tracks, is a dead track. With respect to the logical state of the target track circuit, the logical state of the adjacent track circuit, and the transition of the physical state of the target track circuit, the logical state of the target track circuit is not limited to the normal state based on the vehicle tracking processing logic. It also makes transition to an illegal state. In addition, if there is a section that is a boundary orbit among the sections 1T and NT that are terminal orbits, the track circuit related thereto depends on the logical state of the target track circuit and the transition of the physical state of the target track circuit. The logic state of the target trajectory circuit is changed in a state other than the illegal state.

  About the track circuit state determination apparatus 10 of this Example 1, the use aspect and operation | movement are demonstrated referring drawings.

4 (a) to (g), FIG. 5 (a) to (c), FIG. 6 (a) to (b), and FIG. 7 (a) to (g), each of the sections 1T, 2T, The physical state indicated by the track relay 1TR of the 3T track circuit and the track circuit definition data 14 relating to the sections 1T and 2T.
4 shows an operation example when the terminal track section 1T is a boundary track, and FIG. 5 shows an operation example when the terminal track section 1T is a stop track. 6 and 7 show another example of operation when the section 1T of the terminal track is a dead track.

When the section 1T of the terminal trajectory is a boundary trajectory (see FIG. 4A), the track circuit defining data 14 is preset with “boundary” in the left trajectory item as fixed defining data related to the track circuit of the section 1T. In addition, the section name “2T” is preset in the item of the right trajectory, and when the train is not on the train for a long time, the logical state, which is the update target data, is in the finalized state and is also the update target. The duration as data is the upper limit value “999”.
In addition, the section name “1T” is set in advance in the item of the left track related to the track circuit of the section 2T, and the section name “3T” is set in advance in the item of the right track. The logic state is in a finalized state and the duration is the upper limit value “999”.

Even if a train arrives there, the track circuit in the sections 1T to NT continues to rise while it is still outside the vehicle tracking range (see FIG. 4B). The state is also maintained in a final state.
Then, (see FIG. 4C), when the train starts to enter the section 1T of the boundary track, the track circuit physical state of the section 1T falls, so the track circuit state determination program 13 causes the track circuit of the section 1T. The logic state is brought to a definite fall state and the duration is cleared.

When the train further advances and begins to enter the section 2T of the normal track (see FIG. 4D), the physical state of the track circuit in the section 2T also falls, so the track circuit state determination program 13 causes the track in the section 2T. The logic state of the circuit is also brought to a definite fall state and the duration is cleared.
Then (see FIG. 4 (e)), when the train advances into the section 1T and falls within the section 2T, the track circuit of the section 1T rises, so that the track circuit state determination program 13 causes the track circuit logical state of the section 1T to Is indefinitely raised and the duration is cleared.

When the track circuit in the section 1T continues to rise for 2.4 seconds or more, the track circuit state determination program 13 sets the logic state of the track circuit in the section 1T to the confirmed rise state and clears the duration time. Is done.
When the train further progresses and enters the section 3T of the normal track (see FIG. 4 (f)), the track circuit of the section 3T falls, so the track circuit state determination program 13 causes the track circuit logical state of the section 3T to change. Is placed in a definite fall state and the duration is cleared.

Then (see FIG. 4 (g)), when the train advances into the section 2T, the track circuit of the section 2T rises, so that the logic state of the track circuit of the section 2T is indefinitely raised by the track circuit state determination program 13 To be.
Then, when the uphill state of the track circuit in the section 2T continues for 2.4 seconds or more, the track circuit state determination program 13 sets the logical state of the track circuit in the section 2T to the confirmed uphill state.
Thus, when the section 1T of the terminal track is a boundary track, even if the train enters from outside the vehicle tracking range, the situation where the vehicle tracking can be started from the terminal track is adjusted. Although detailed explanation is omitted, vehicle tracking can be continued up to the terminal track even when the train advances outside the vehicle tracking range.

  When the terminal track section 1T is a dead track (see FIG. 5), the data items of the adjacent track circuit in the track circuit definition data 14 are mostly the same as those of the boundary track described above (see FIG. 4A). However, only one item is different, and “closed” is set in advance in the item of the left track relating to the track circuit in the section 1T (see FIG. 5A). Further, since the track circuits in the sections 1T to NT continue to rise when there is no train for a long time, the logical state of each track circuit is in the confirmed rise state, and the duration time is the upper limit value “999”. "It has become.

When the physical state of the track circuit related to the section 1T that is the dead track becomes a falling state when the train is not present (see FIG. 5B), the track circuit state determination program 13 causes the track circuit logical state of the section 1T to change to the logical state. Is illegally dropped and the duration is cleared.
Similarly, when the physical state of the track circuit related to the section 2T, which is a normal track, becomes a fall state (see FIG. 5C), the track circuit state determination program 13 changes the logic state of the track circuit of the section 2T to an illegal fall state. And the duration is cleared.

Thus, when the terminal track section 1T is a dead-end track, the logical state is changed to an illegal fall state when the physical state becomes a fall state corresponding to the train line even though the train has not arrived, like the normal track section 2T. Therefore, it is found that a problem has occurred with respect to the corresponding track circuit.
Even if the logical state of the target track circuit becomes an illegal fall state, if the physical state rises, the logical state will be indeterminate, and if it continues to rise for more than 2.4 seconds, the logical state will be confirmed. Since the vehicle is in the upright state, the vehicle tracking can be resumed if the problem is recovered.

  Further, when the terminal track section 1T is a closing track (see FIG. 6), the following occurs when the train is on the line. First (see FIG. 6 (a)), for the fixed prescribed data of the track circuit defining data 14, the deadline 2T is the item of the left track / right track in the section 1T, and the left track / right track item of the section 2T. 1T · 3T is set in advance, and 2T · 4T is preset in the items of the left trajectory and the right trajectory in the section 3T. Then, when the description starts from the point where the train is traveling toward the left in the section 2T of the normal track, the logical state of the track circuit in each section 1T to 3T is the physical state of each track circuit at that time. They are updated by the track circuit state discriminating program 13 in accordance with the continuation of the hoisting, falling, and hoisting, respectively, and are in the definitive hoisting state, definitive falling state, and definitive hoisting state.

  When the train proceeds to the left from this state and begins to enter the section 1T of the closing track (see FIG. 6B), the physical state of the track circuit in the section 1T falls, so the track circuit state determination program 13 As a result, the logic state of the track circuit in the section 1T is set to the definite fall state and the duration time is cleared. Then (see FIG. 7 (a)), when the train advances into the section 2T and fits into the section 1T, the physical state of the track circuit in the section 2T becomes elevated, so the track circuit state determination program 13 causes the track in the section 2T. The logic state of the circuit is made indeterminate and the duration is cleared. Then (see FIG. 7B), when the physical state of the track circuit in the section 2T is in a high state for 2.4 seconds or more, the track circuit logical state of the track circuit in the section 2T is determined by the track circuit state determination program 13. Is set to the final state and the duration is cleared.

  Since the train that has reached the section 1T of the stop track cannot proceed further to the left, the traveling direction is switched and the vehicle proceeds to the right (see FIG. 7 (c)). When the track circuit in the section 1T has its physical state in the upper position due to poor conduction or failure (see FIG. 7D), the adjacent track circuit (2T) is in the final upper state and is determined. Since it is not in the fall state, the track circuit state determination program 13 changes the logic state of the track circuit in the section 1T to the illegally elevated state and clears the duration. Then, if the physical state of the track circuit in the section 1T continues to rise for 120 seconds or more, the track circuit state determination program 13 sets the logical state of the track circuit in the section 1T to the confirmed rise state and continues. If the physical state of the track circuit in the section 1T returns to the fall before that time is cleared, the track circuit state determination program 13 returns the logic state of the track circuit in the section 1T to the fixed fall state.

  Then (see FIG. 7 (e)), when the train advances to the right and starts entering the section 2T of the normal track, the physical state of the track circuit in the section 2T falls, so the track circuit state determination program 13 The logic state of the track circuit in the section 2T is set to the definite fall state and the duration time is cleared. Further (see FIG. 7 (f)), when the train advances into the section 1T and falls into the section 2T, the track circuit physical state of the section 1T becomes the upper side, so the track circuit state determination program 13 causes the track of the section 1T to travel. The logic state of the circuit is made indeterminate and the duration is cleared. When the physical state of the track circuit in the section 1T is in the uppermost state for 2.4 seconds or more (see FIG. 7 (g)), the track circuit logical state of the track circuit in the section 1T is determined by the track circuit state determination program 13. Is set to the final state and the duration is cleared.

  Thus, when the section 1T of the terminal track is a closing track, the state determination reflecting that the train cannot advance out of the vehicle tracking range is performed, and in addition to continuing the vehicle tracking to the terminal track, If the physical state changes to an upright state corresponding to a train non-existing line even though the train is coming, the logical state is changed to an illegal upside state, so that it is found that a problem has occurred with respect to the corresponding track circuit. Although the detailed description that will be repeated is omitted, the normal state track circuit is similarly determined based on the vehicle tracking processing logic.

[Others]
Although not described in the above embodiment, the track circuit physical state may be subjected to appropriate track circuit information optimization processing that masks the transient tilt of the relay contacts (see Non-Patent Document 1, for example). .
Further, in the above embodiment, 2.4 seconds is used as the duration time of the lifting state used for confirmation when transitioning from the illegal climbing state to the confirmed lifting state, but this duration time is another time length. However, it may be 2 seconds, for example.

Further, in the above embodiment, when the logical state of the target track circuit falls when the logical state of the target track circuit is in the definite rise state or indefinite rise state, the logical state of the target track circuit immediately transitions to the definite fall state. In this case, instead of making an immediate transition, the logical state is transitioned after waiting for the falling state to continue for about 1.2 seconds, for example, to enter the train. You may do it.
In the above embodiment, the upper limit value of the duration time of the track circuit defining data 14 is “999”. However, this is only an example, and any other value may be used as long as it is larger than the value necessary for confirmation.

  The track circuit state determination device of the present invention is typically applied to an electronic interlocking device (see, for example, Non-Patent Document 1), but can also be applied to other devices such as a track circuit and a train operation monitoring device.

5 ... orbit, 1T, 2T, 3T to NT ... section (orbit circuit),
1TR, 2TR, 3TR to NTR ... Track relay (track circuit),
10: Track circuit state determination device,
DESCRIPTION OF SYMBOLS 11 ... Input circuit, 12 ... Logic part, 13 ... Track circuit state determination program,
13a ... Track circuit state determination program for boundary track,
13b ... Track circuit state determination program for normal termination, 14 ... Track circuit regulation data

Claims (3)

  A circuit for inputting each physical state from a plurality of track circuits belonging to the vehicle tracking range, a data item for indicating the logical state of the target track circuit for each of the track circuits, and adjacent track circuits on both sides of the target track circuit. Means for holding track circuit defining data having data items for specifying, and the logical state of the target track circuit and its adjacent track circuit for each track circuit related to the normal track inside the vehicle tracking range of the track circuit Track circuit state discriminating means for transitioning the logical state of the target track circuit to not only a normal state but also an incorrect state based on the vehicle tracking processing logic according to the logical state of the target track circuit and the physical state transition of the target track circuit In the track circuit state determination device, the track circuit defining data is a vehicle for the track circuit related to the terminal track at the end of the vehicle tracking range in the track circuit. It defines whether the track is a boundary track with a train running track outside the trace range or a non-stop track, and the track circuit state discriminating means is a target track circuit for the track track related to the stop track. The logical state of the target track circuit is changed not only to the normal state but also to the illegal state based on the vehicle tracking processing logic according to the logical state of the current track circuit, the logical state of the adjacent track circuit, and the transition of the physical state of the target track circuit. An orbital circuit state determination device characterized by that.   The track circuit defining data includes two adjacent track circuit specifying data items for specifying the adjacent track circuit for each of the track circuits, corresponding to both sides. The data value indicating the dead end trajectory is held in one of the two adjacent track data specifying data items, and the data value indicating the boundary trajectory is related to the boundary trajectory of the track circuit. The track circuit state determination device according to claim 1, wherein the track circuit state determination device is held in one of the adjacent track circuit specifying data items.   The track circuit state discriminating means transitions the logic state of the target track circuit according to the logical state of the target track circuit and the physical state of the target track circuit for the track circuit related to the boundary track. The track circuit state determination device according to claim 1 or 2, wherein the track circuit state determination device is configured as described above.

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