A method for sending train arrival time

Abstract

The present invention provides a method for sending train arrival time, establishing a trigger list, the trigger list includes multiple operation levels between the departure station and the arrival station and trigger tracks corresponding to each operation level; the operation level corresponds to the operation time between the departure station and the arrival station; the operation level is selected from the trigger list, and the train runs between the departure station and the arrival station according to the selected operation level. When the train runs to the trigger track corresponding to the operation level, the train monitoring system ATS sends the train arrival time to the passenger information system PIS. The present invention improves the accuracy of the sending time and the accuracy of the sending content, and improves the waiting experience of passengers.

Description

Technical Field

[0001] The present invention relates to the field of rail transit, and in particular to a method for triggering a train monitoring system to send a train arrival time to a passenger information system based on train track occupancy. Background Art

[0002] In the operation of urban rail transit, the platform passenger information system (PIS) needs to show the waiting passengers on the platform whether there is a train arriving at the platform where the passengers are waiting and how long the train is expected to arrive at the station. The passenger information system PIS obtains this information from the train monitoring system (ATS) through an interface device.

[0003] In the currently operating subway lines, the train monitoring system ATS sends the ATS-PIS interface message several seconds in advance based on the arrival time of a certain train defined in the day's operation plan and the requirements of the passenger information system PIS. This method triggers the message sending between ATS and PIS based on the arrival time in the day's operation plan.

[0004] When all trains run on time, this mechanism of triggering ATS-PIS message sending based on the day's operation plan can ensure that PIS accurately displays the estimated arrival time of the train. However, in actual operation, due to various reasons, it is difficult for trains to run on time, and they often arrive early or late, resulting in the actual arrival time of the train being different from the planned time of the day, or even very different. Therefore, the estimated arrival information of the train displayed by PIS is inaccurate, misleading waiting passengers. Especially at the starting or terminal platform and during off-peak operation, such inaccurate displays are more obvious, making the waiting experience worse for passengers, and passenger complaints due to such reasons are also increasing.

[0005] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art. Summary of the invention

[0006] The purpose of the present invention is to provide a method for sending train arrival time, which improves the accuracy of sending time and sending content and enhances passengers' waiting experience.

[0007] In order to achieve the above object, the present invention provides a method for sending a train arrival time, comprising the following steps:

[0008] Establishing a trigger list, wherein the trigger list includes a plurality of operation levels between the departure station and the arrival station and a trigger track corresponding to each operation level; the operation level corresponds to the operation time between the departure station and the arrival station;

[0009] An operation level is selected from the trigger list, and the train runs between the departure station and the arrival station according to the selected operation level. When the train runs to the trigger track corresponding to the operation level, the train monitoring system ATS sends the train arrival time to the passenger information system PIS.

[0010] The method for calculating the trigger track corresponding to each running level includes:

[0011] The train runs from the departure station to the arrival station at each operation level, and calculates the time T when the train corresponding to each operation level stops at the arrival station. Z ;

[0012] T z =TD+PL i ;

[0013] Among them, TD is the time when the train leaves the departure station, and PL is the running time corresponding to the running level;

[0014] Calculate the sending time T1 corresponding to each operation level Z ;

[0015] T1 Z =T Z -pis_time x ;

[0016] Among them, pis_time x It is the advance sending time defined by the Passenger Information System PIS;

[0017] Sending time T1 Z The corresponding train position is the trigger rail.

[0018] When the train runs to the trigger track, the train monitoring system ATS receives the track occupancy information sent by the train automatic control system ATC, and the train monitoring system ATS sends the train arrival time to the passenger information system PIS.

[0019] The present invention has the following beneficial effects (advantages):

[0020] 1. The present invention triggers the train monitoring system to send train arrival information to the passenger information system by the train track occupancy, thereby improving the accuracy of the sending timing and solving the problem of inaccurate display of the passenger information system caused by the train being early or late;

[0021] 2. The present invention establishes a trigger track list for multiple interval operation levels. The triggering method is more flexible and more in line with the actual operation of the train. Passengers can more accurately know the train information expected to arrive at the platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1It is a schematic diagram of a train running line in an embodiment of the present invention.

[0023] Figure 2 It is a flow chart of a method for implementing sending train arrival time in an embodiment of the present invention.

[0024] Figure 3 yes Figure 2 Flowchart of the trigger track acquisition method. DETAILED DESCRIPTION

[0025] The following is based on Figure 1 to Figure 3 , specifically describe the preferred embodiments of the present invention.

[0026] The present invention provides a method for sending a train arrival time, which triggers a train monitoring system to send the train arrival time to a passenger information system based on train track occupancy, and specifically comprises the following steps:

[0027] Step S1: Based on the time when the train stops at the platform, the passenger information system PIS defines the time pis_time in advance for all platforms on the line. x The train monitoring system ATS sends a message to the passenger information system PIS, where x is the platform number;

[0028] Different stations have different station names or different contents to be broadcast. The advance time is pis_time x different.

[0029] Step S2: for platform x, the train is run according to a plurality of different operation levels between platform x-1 (the previous platform of platform x in the running direction) and platform x; the operation level corresponds to the running time between platform x-1 and platform x, for example, the interval running time corresponding to operation level 1 is 120 seconds, and the interval running time corresponding to operation level 2 is 130 seconds;

[0030] Starting from the moment the train stops at platform x, trace back pis_time x , determine the track position Track_z where the train is at this time. When Track_z is a punctual train, the ATS-PIS message of the platform x sends the trigger track.

[0031] Step S3, in actual operation, when the train arrives at platform x-1, ATS will make adjustments according to the actual operation of the train, and select one operation level from multiple operation levels in the current operation range of the train as the actual operation level pl_online_z of the train's operation range from platform x-1 to platform x;

[0032] Step S4, ATS determines the PIS trigger track Track_z corresponding to the actual operation level pl_online_z;

[0033] Step S5, when the train runs to the trigger track Track_z, the train monitoring system ATS receives the track occupancy information, which indicates that the train is occupying the track Track_z, and triggers ATS to send a message to PIS; the track occupancy information is sent by the train automatic control system ATC to the train monitoring system ATS, ATC determines the position based on the transponder, etc., and then transmits the train position information to ATS.

[0034] The step S2 comprises the following specific steps:

[0035] Step S2.1, determining the number of operating levels between adjacent stations in the line;

[0036] Step S2.2: The train runs from platform x-1 to platform x at each operation level, and the time T at which the train corresponding to each operation level stops at platform x is determined according to the operation results of each operation level. Z ;

[0037] The time when the train is scheduled to leave the current x-1 platform plus the interval operation time corresponding to the interval operation level can be obtained to obtain the time when the train stops at the x platform;

[0038] Assume TD x-1 is the departure time of the train at platform x-1, T z is the time when the train stops at platform x, PL i is the interval running time corresponding to different running levels, i is a natural number, then, T z =TD x-1 +PL i For each operation level, the stopping time of the train arriving at platform x at that operation level must be calculated once;

[0039] Step S2.3: Obtain the time value pis_time that ATS needs to send a message to PIS in advance for station x according to PIS requirements x ; Then according to T Z and pis_time x The difference between Z , and according to T1 Z Determine the track Track_z currently occupied by the train;

[0040] T1 Z＝ T Z -pis_time x, the time when the station stops at platform x minus the advance sending time is the time when it should be sent. Then, according to the ATS-ATC communication record, the sending time T1 can be found Z When ATC transmits train position information to ATS, this position is the trigger track.

[0041] The following is based on Figure 1 to Figure 3 , specifically describe the embodiments of the present invention.

[0042] like Figure 1 As shown, the train runs from the first platform 1 of station A to the second platform 2 of station B, and there are multiple tracks Track_1 to Track_6 between the first platform 1 and the second platform 2.

[0043] like Figure 2 As shown, triggering the train monitoring system to send the train arrival time to the passenger information system based on the train track occupancy includes the following steps:

[0044] Step 1: Obtain the trigger rail corresponding to each platform at different operation levels;

[0045] like Figure 1 As shown, the trigger track corresponding to operation level 1 is Track_5, the trigger track corresponding to operation level 2 is Track_4, and the trigger track corresponding to operation level 3 is Track_3;

[0046] like Figure 3 As shown, step 1 includes the following steps:

[0047] Step 1.1, assuming that it is learned from PIS that for the second station 2, the ATS sends the message in advance for 30 seconds;

[0048] Step 1.2: According to the line operation status and signal system settings, it is known that there are 3 operation levels from the first platform 1 to the second platform 2;

[0049] Step 1.3, set the first platform 1 to operation level 1, the train runs normally from the first platform 1 to the second platform 2 according to operation level 1 and stops steadily, obtain the stopping time T1, subtract 30 seconds from T1 to get the sending time, and the train occupied track corresponding to the sending time is the ATS-PIS message sending trigger track under operation level 1;

[0050] Similarly, the running car is run at running level 2 and running level 3 respectively, and the trigger tracks corresponding to running level 2 and running level 3 are obtained;

[0051] Step 2: When the train stops at the first platform 1, ATS will select the operation level from platform 1 to platform 2 according to the train operation situation, assuming that the operation level is 2;

[0052] Step 3: ATS can learn that the trigger track corresponding to operation level 2 should be Track_4;

[0053] Step 4: The train enters the section between the first platform 1 and the first platform 2 and informs the ATS of the track information occupied by the train.

[0054] Step 5: When the train occupies the trigger track Track_4, ATS sends a message to PIS;

[0055] Step 6: PIS receives the message sent by ATS and displays it on the platform PIS screen, so that passengers can know how long it will take for the train to arrive.

[0056] The method for triggering a train monitoring system to send a train arrival time to a passenger information system based on train track occupancy provided by the present invention can effectively reduce the influence of the train operation on the line on the accuracy of the timing of ATS sending a PIS message. The trigger tracks corresponding to different operation levels can adapt to various operation scenarios more flexibly, and can better provide passengers with information services for predicting arrival times.

[0057] It should be noted that, in the embodiments of the present invention, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0058] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the present invention. After reading the above content, it will be apparent to those skilled in the art that various modifications and substitutions of the present invention will occur. Therefore, the protection scope of the present invention should be limited by the appended claims.

Claims

1. A method for sending train arrival time, characterized in that: The following steps are involved: Establishing a trigger list, wherein the trigger list includes a plurality of operation levels between the departure station and the arrival station and a trigger track corresponding to each operation level; the operation level corresponds to the operation time between the departure station and the arrival station; Select an operation level from the trigger list, the train runs between the departure station and the arrival station according to the selected operation level, and when the train runs to the trigger track corresponding to the operation level, the train monitoring system ATS sends the train arrival time to the passenger information system PIS; The method for calculating the trigger track corresponding to each running level includes: The train runs from the departure station to the arrival station at each operation level, and calculates the time T when the train corresponding to each operation level stops at the arrival station. Z ; T z =TD+PL i ; Among them, TD is the time when the train leaves the departure station, PL i is the running time corresponding to the running level; Calculate the sending time T1 corresponding to each operation level Z ; T1 Z =T Z -pis_time x ; Among them, pis_time x It is the advance sending time defined by the Passenger Information System PIS; Sending time T1 Z The corresponding train position is the trigger rail.

2. The method for sending the train arrival time according to claim 1, characterized in that: When the train runs to the trigger track, the train monitoring system ATS receives the track occupancy information sent by the train automatic control system ATC, and the train monitoring system ATS sends the train arrival time to the passenger information system PIS.

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