JP2014097713A - Train radio system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a train radio system capable of operating a train smoothly while suppressing a cost associated with improvement of a system.SOLUTION: A train radio system includes: an on-board control device 52; an on-board radio devices 51; radio base stations 1-8; on-ground control devices A-D; and a radio control device 40, having an information management table containing at least identifier information of the radio base stations 1-8, respective control ranges of the individual on-ground control devices A-D, on-ground control devices that are transmission destinations of positional information 60, and radio base stations that are transmission destinations of control information 61, all in correlation with one another, for controlling a transmission destination of the positional information 60 from the radio base stations 1-8 and a transmission destination of the control information 61 from the on-ground control devices A-D.

Description

  The present invention relates to a train radio system.

  A conventional train radio system includes an on-board device provided in a moving train and a plurality of radio base stations (hereinafter referred to as “base stations”) arranged along a track along which the train moves. In order to perform communication, the on-board device is configured to perform an operation of switching a communication destination base station (hereinafter referred to as “handover”) (for example, Patent Document 1 below).

  On the other hand, in a train radio system, a track on which a train travels is divided into a plurality of control ranges, and one ground device and a plurality of base stations are arranged in each control range. A control range managed by the own device is set in the ground device, and the ground device transmits control information including stop limit position information to the base station based on position information from a train traveling in the control range. It is configured.

JP 2011-124725 A

  However, in the prior art represented by the above-mentioned Patent Document 1, a handover point (a position where the on-board wireless device changes a base station with which the on-board wireless device communicates) is set in each ground device, and two adjacent control ranges Is set to coincide with a handover point between base stations existing near the base boundary. Therefore, when the wireless environment changes due to the addition of base stations or the construction of high-rise buildings, it is sometimes necessary to change not only the handover point set for the ground device but also the base boundary.

  However, since the train radio system is required to operate 24 hours a day, when the ground device is temporarily stopped and the database is changed, the stop time of the train radio system becomes longer, which may affect the smooth operation of the train. There is sex. Furthermore, since the database update work extends to a plurality of ground devices, a large work cost is required. In particular, the train radio system performs extended handover point control to back up the coverage area of a base station by controlling another base station adjacent to the base station when a failure occurs in any of the base stations. Is called. Therefore, when the radio environment changes, not only the handover point when there is no abnormality in the radio base station, but also the extended handover point when an abnormality occurs in the radio base station needs to be changed. In order to carry out handover control and extended handover point control at different handover points, complicated verification of the ground control function is required. Therefore, it has been difficult for the conventional train radio system to meet the need to realize smooth train operation while suppressing the costs associated with system refurbishment.

  This invention is made in view of the above, Comprising: It aims at obtaining the train radio system which can implement | achieve smooth train operation, suppressing the cost accompanying repair of a system.

  In order to solve the above-described problems and achieve the object, the present invention provides the train based on the ground element information from the ground element arranged on the track on which the train travels and the train speed detected by the train. The on-board control device that controls the train speed by checking the train speed against the speed check pattern, and the on-board radio that transmits the position information from the on-board control device to the ground side And a plurality of radio base stations that are divided into a plurality of control ranges, are arranged in the respective control ranges, and perform radio communication with the on-vehicle radio device, and are arranged in the respective control ranges, A plurality of ground control devices that receive the position information via each radio base station, generate and output control information for controlling the travel of the train based on the position information, and at least identification information of the radio base station And each ground control An information management table in which the control range of the device, the ground control device that is the transmission destination of the location information, and the radio base station that is the transmission destination of the control information are associated with each other, And a radio control device that controls a transmission destination of control information from the ground control device, and when the radio control device receives position information from the radio base station, the radio control device is based on the information management table. When determining the transmission destination of this location information, transmitting this location information to the ground control device that manages the radio base station that is the transmission source of the location information, and when receiving control information from the ground control device, A transmission destination of the control information is determined based on the information management table, and the received control information is transmitted to a radio base station managed by the ground control apparatus.

  According to the present invention, since the radio control device having the table in which the information about the handover point is associated with the radio base station is provided, it is possible to realize smooth train operation while suppressing the cost associated with system renovation. There is an effect that it is possible.

FIG. 1 is a configuration diagram of a train radio system according to an embodiment of the present invention. FIG. 2 is a diagram illustrating an example of an information management table set in the ground control device. FIG. 3 is a diagram for explaining handover control performed using a table set in the ground control apparatus. FIG. 4 is a diagram illustrating an example of an information management table set in the wireless control device. FIG. 5 is a diagram for explaining handover control performed using a table set in the radio network controller. FIG. 6 is a first diagram for explaining the operation of the train radio system when the ID2 radio base station is normal. FIG. 7 is a second diagram for explaining the operation of the train radio system when the ID2 radio base station is normal. FIG. 8 is a first diagram for explaining the operation of the train radio system when the radio base station of ID2 is abnormal. FIG. 9 is a second diagram for explaining the operation of the train radio system when the radio base station of ID2 is abnormal.

  Hereinafter, embodiments of a train radio system according to the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment.
FIG. 1 is a configuration diagram of a train radio system according to an embodiment of the present invention. The train radio system shown in FIG. 1 includes a line management device 10 and a plurality of ground control devices A to D (for example, four for the line management device 10) connected to the line management device 10 via the network 20. , A plurality of base stations 1 to 8 (for example, two for each ground control device A to D) connected to each ground control device A to D via the network 30, and each ground control via the network 30 It comprises a radio control device 40 connected to the devices A to D and the respective radio base stations 1 to 8, an on-board radio device 51, and an on-board control device 52.

  The track 70 is divided into a plurality of control ranges (for example, four control ranges 70A to 70D), and one ground control device is provided in each of the control ranges 70A to 70D. In the following description, the boundary points where the respective control ranges 70A to 70D are adjacent are referred to as “base boundaries a to e”. The control range 70A represents the control range of the ground control device A, and similarly, the control ranges 70B, 70C, and 70D represent the control ranges of the ground control devices B, C, and D. For example, the train 50 traveling in the control range 70 </ b> B is controlled by the ground control device B via the radio base stations 3 and 4.

  In the train radio system shown in FIG. 1, four ground control devices A to D are used, and two radio base stations are connected to the ground control devices A to D. The number of is not limited to this. FIG. 1 shows only the on-board wireless device 51 and the on-board control device 52 as an example of the on-vehicle equipment. However, the actual train 50 includes various on-vehicle equipment (for example, a speed generator, brake control, etc.). Needless to say, a device, a car upper, etc. are mounted. These devices are connected to each other by an in-vehicle network and an inter-vehicle network (not shown). Further, the arrow group shown in FIG. 1 schematically shows the flow of A → B information and B → A information described later. In FIG. 1, for convenience of explanation, these pieces of information do not pass through the network 20. However, in actuality, it is transmitted via the network 20 and the wireless control device 40. The A → B information is information transmitted from the ground to the vehicle, and the B → A information is information transmitted from the vehicle to the ground.

  In each of the ground control devices A to D, the position of the train 50 traveling in the control range 70A to 70D of the own device is detected based on the position information 60, and the position information 60 is exchanged with other ground control devices. Done. Each ground control device A to D configures a route required for traveling of the train 50 based on the position information 60, and searches for conditions that hinder the traveling until the end of the route (running ahead). Train, system boundary, route end, etc.) and the farthest end position (stop limit position) where the train 50 can travel is calculated. In the following description, this calculation result is referred to as “control information 61”.

  FIG. 2 is a diagram illustrating an example of an information management table set in the ground control devices A to D. FIG. 2 shows two types of tables used when controlling the upward train 50 for the sake of simplicity.

  FIG. 2A shows an information management table 80-1 used for handover control when the radio base station 2 is normal. In the information management table 80-1, a radio base station ID 80a, a block front position 80b, a block rear position 80c, and an A → B information distribution destination radio base station 80d are associated with each other. The A → B information distribution destination radio base station 80d represents a transmission destination radio base station of the control information 61 transmitted from the ground control devices A to D to the vehicle.

  The block front position 80b and the block rear position 80c represent the coverage area of each of the radio base stations 1 to 8 by the block number on the line 70 and the position in the block. The wireless base stations 1 to 8 in communication with the train 50 are specified by collating the position information 60 from the information management table 80-1.

  FIG. 2B shows a degeneration information management table 80-2 used when the wireless base station 2 performs extended handover control when an abnormality occurs (when an adjacent base station is backed up). In addition to the information described in the information management table 80-1, a backup target radio base station ID 80e is added to the degeneration information management table 80-2. Although not described in FIG. 2, it is assumed that information regarding other radio base stations is also set in these tables. In addition, it is assumed that the ground control devices A to D are also set with a table for the down direction describing these correspondences.

  FIG. 3 is a diagram for explaining the handover control performed using the tables set in the ground control apparatuses A to D. In FIG. 3A, the control range 70A of the ground control device A and the control range 70B of the ground control device B when the radio base station 2 is normal are shown for each traveling direction of the train 50. 3A shows the control range 70A of the ground control device A and the control range 70B of the ground control device B when the radio base station 2 is abnormal for each traveling direction of the train 50. In FIG. 3B, each block number when the track 70 is divided into a plurality of blocks is shown for each traveling direction of the train 50. FIGS. 3C and 3D show examples of handover points managed by the ground control devices A and B.

  FIG. 3C shows a handover point when the radio base station 2 is normal. In the uplink direction, the area from the intra-block position 300 (denoted as A1002 + 300) of block number A1002 to the intra-block position 300 (denoted as A1004 + 300) of block number A1004 is the block of the radio base station 2 shown in FIG. The coverage area of the radio base station 2 is represented corresponding to the front position 80b and the block rear position 80c. Further, in the uplink direction, the area from A1004 + 300 to A2003 + 50 corresponds to the block front position 80b and the block rear position 80c of the radio base station 3 shown in FIG. 2A, and represents the coverage area of the radio base station 3. Yes. A notation such as “+300” represents a distance (unit: m) from the starting end position of each block.

  A1002 + 300 is a handover point of the radio base stations 1 and 2, A1004 + 300 is a handover point of the radio base stations 2 and 3, and A2003 + 50 is a handover point of the radio base stations 3 and 4. The same applies to the handover point in the downlink direction, and a description thereof will be omitted below. “Base 2 → Ground A” means that the location information 60 from the radio base station 2 is transmitted to the ground control apparatus A, and “Base 3 → Ground B” is the location from the radio base station 3. This means that the information 60 is transmitted to the ground control apparatus B. “Ground A → Base 2” means that the control information 61 from the ground control device A is transmitted to the radio base station 2, and “Ground B → Base 3” is the control information 61 from the ground control device B. Is transmitted to the radio base station 3.

  FIG. 3D shows a handover point when the radio base station 2 is abnormal. For example, in the uplink direction, the area from A1000 + 300 to A1004 + 50 corresponds to the block front position 80b and the block rear position 80c of the radio base station 1 shown in FIG. 2B, which is when the radio base station 2 is abnormal. The coverage area by the wireless base station 1 in FIG. Further, in the uplink direction, the area from A1004 + 50 to A2003 + 50 corresponds to the block front position 80b and the block rear position 80c of the radio base station 3 shown in FIG. 2 (b). The coverage area by the wireless base station 3 in FIG.

  A1000 + 300 is a handover point between the radio base station 1 and an adjacent radio base station (not shown), A1004 + 50 is a handover point of the radio base stations 1 and 3 at the time of degeneration, and A2003 + 50 is a radio base station 3, 4 is a handover point. The same applies to the handover point in the downlink direction, and a description thereof will be omitted below.

  Hereinafter, the operation of the train radio system when the radio control device 40 is not provided will be described. Since the control range b (base boundary) of the ground control device is linked with the coverage area boundary (handover point) of the radio base stations 2 and 3, the ground control device has the information management table shown in FIG. It is necessary to carry out. First, the on-board controller 52 calculates the travel distance from the reference position, for example, using the absolute position of a ground unit (not shown) installed at the start of each block shown in FIG. 3 as a reference position. The information obtained in this way is output to the on-board wireless device 51 as the position information 60, and the on-board wireless device 51 wirelessly transmits a train ID (for example, ID = 101) for identifying each train 50 and the position information 60. Set to the frame. Then, this transmission frame is transmitted to the radio base station 2 in communication with the train 50. In the radio base station 2 that has received the transmission frame, the position information 60 and the like are extracted, and the extracted information is transmitted to the ground control device A that manages the radio base station 2.

  When the radio base station 2 is normal, when the train 50 running in the upward direction is located between A1002 + 300 and A1004 + 300, the ground control device A refers to the information management table 80-1 to The position information 60 from the train 50 specifies that the train 50 is present in the area of the radio base station 2. Then, the ground control apparatus A adds the IP address of the radio base station 2 to the control information 61 and transmits it to the radio base station 2. In the radio base station 2, this information is set in a slot in a predetermined transmission frame and transmitted to the on-board radio device 51. The on-board wireless device 51 extracts control information 61, and the extracted control information 61 is output to the on-board control device 52. The on-board control device 52 generates and generates a speed check pattern based on the control information 61. The speed check pattern is compared with the speed information from the speed generator. When the speed information exceeds the speed check pattern, the on-board control device 52 generates a brake command and transmits the brake command to the brake control device.

  The train 50 traveling in the upward direction exceeds A1004 + 300. The ground control device transmits the radio base station switching point to the on-board control device, for example, 1 km before. The on-board control device switches the radio base station for communication based on the information on the ground control device. Then, when the train 50 traveling in the upward direction exceeds A1004 + 300, the ground control device A refers to the information management table 80-1, so that the train 50 is present in the area of the radio base station 3. Knowing this, the control information 61 is transmitted to the radio base station 3. Such control is referred to as handover point control.

  On the other hand, when the radio base station 2 is abnormal, the ground control device A specifies that the backup target is the radio base station 2 based on the radio base station ID. When the train 50 traveling in the upward direction is located between A1000 + 300 and A1004 + 50, the ground control device A refers to the information management table 80-2 at the time of degeneration, so that the position from the train 50 is The information 60 grasps that the train 50 is present in the area of the radio base station 1, and specifies that the transmission destination of the control information 61 (information from the ground to the vehicle) is the radio base station 1. Then, the ground control device A transmits control information 61 to the radio base station 1.

  When the train 50 traveling in the upward direction exceeds A1004 + 50, the ground control device B refers to the degeneration information management table 80-2, so that the train 50 exists in the area of the radio base station 3. Control information 61 is transmitted to the radio base station 3. Such control is referred to as extended handover point control.

  However, the base boundary b of the ground control devices A to D is set so as to coincide with the handover point between the radio base stations 2 and 3 existing near the base boundary b, so that the addition of radio base stations or high-rise buildings When the wireless environment changes due to construction of the site, not only the handover point but also the base boundaries a to e must be changed. For example, when a high-rise building group is constructed between the radio base stations 2 and 3, it is necessary to move the handover point between the radio base stations 2 and 3 to the radio base station 2 side by about several hundred meters. The base boundary b set in the A and B databases must be changed to match the changed handover point, and the work cost increases with the change of the database, and the ground control devices A to D are changed. There is a possibility that it will affect the smooth operation of trains due to temporary suspension of operation.

  In order to solve such a problem, the train radio system of the present embodiment has a radio control device 40, and the configuration of the radio control device 40 will be described below.

  FIG. 4 is a diagram illustrating an example of an information management table set in the wireless control device 40. FIG. 4 shows two types of tables used when controlling the upward train 50 for the sake of simplicity.

  FIG. 4A shows an information management table 43-1 used for handover control when the radio base station 2 is normal. The information management table 43-1 includes a radio base station ID 43a and a block front position. 43b, block rear position 43c, B → A information distribution destination ground control device 43d, and A → B information distribution destination radio base station 43e are associated with each other. The B → A information distribution destination ground control device 43d represents the ground control devices A to D to which the position information 60 transmitted from the radio base stations 1 to 8 is transferred. On the other hand, the A → B information distribution destination radio base station 43e represents the radio base stations 1 to 8 that are transfer destinations of the control information 61 transmitted from the ground control devices A to D.

  The block front position 43b and the block rear position 43c represent the coverage areas of the radio base stations 1 to 8 by the block number on the line 70 and the position in the block. The wireless control device 40 specifies the wireless base stations 1 to 8 in communication with the train 50 by comparing the position information 60 from the train 50 with the information management table 43-1.

  FIG. 4B shows a degeneration information management table 43-2 used when the wireless base station 2 performs extended handover control when an abnormality occurs (during adjacent base station backup), and the degeneration information management table 43 is shown. -2 includes a backup target radio base station ID 43f in addition to the information described in the information management table 43-1. Although explanation is omitted in FIG. 4, it is assumed that information regarding other radio base stations is also set in these tables. In addition, it is assumed that a table for the downlink direction in which these correspondences are described is also set in the wireless control device.

  FIG. 5 is a diagram for explaining handover control performed using a table set in the radio network controller 40. FIG. 5A shows the control range 70 </ b> A of the ground control device A and the control range 70 </ b> B of the ground control device B for each traveling direction of the train 50. The difference from FIG. 3A is that the base boundary b does not change regardless of the state of the radio base station 2. In FIG. 5B, each block number when the track 70 is divided into a plurality of blocks is shown for each traveling direction of the train 50, as in FIG. 3B. 5C and 5D show examples of handover points managed by the radio network controller 40. FIG.

  FIG. 5C shows a handover point when the radio base station 2 is normal. In the uplink direction, areas from A1002 + 300 to A1004 + 300 correspond to the block front position 43b and the block rear position 43c of the radio base station 2 shown in FIG. 4A, and represent the coverage area of the radio base station 2. . An area from A1004 + 300 to A2001 + 0 corresponds to the block front position 43b and the block rear position 43c of the radio base station 3 shown in FIG. 4A and represents the coverage area of the radio base station 3. Similarly, the area from A2001 + 0 to A2003 + 50 also represents the coverage area of the radio base station 3.

  A1002 + 300 is a handover point of the radio base stations 1 and 2. A1004 + 300 is a handover point between the radio base stations 2 and 3 that has been moved to the radio base station 2 side by about several hundred meters due to the construction of a high-rise building group between the radio base stations 2 and 3, for example. A2001 + 0 is a handover point of the radio base stations 2 and 3 set at the same position as the base boundary b. A2003 + 50 is a handover point of the radio base stations 3 and 4. The same applies to the handover point in the downlink direction, and a description thereof will be omitted below. “Base 2 → Ground A + Ground B” means that the location information 60 from the radio base station 2 is transmitted to the ground control devices A and B, and “Base 3 → Ground B + Ground C” This means that the position information 60 from the base station 3 is transmitted to the ground control devices B and C. “Ground A → Base 2 + Base 3” means that the control information 61 from the ground control device A is transmitted to the radio base stations 2 and 3, and “Ground A → Base 3 + Base 4” This means that the control information 61 from A is transmitted to the radio base stations 3 and 4, and “ground B → base 3 + base 4” means that the control information 61 from the ground control device B is sent to the radio base stations 3 and 4. Means to be sent.

  FIG. 5D shows a handover point when the radio base station 2 is abnormal. For example, in the uplink direction, the area from A1000 + 300 to A1004 + 50 corresponds to the block front position 43b and the block rear position 43c of the radio base station 1 shown in FIG. 4B, which is when the radio base station 2 is abnormal. The coverage area by the wireless base station 1 in FIG. The area from A1004 + 50 to A2001 + 0 corresponds to the block front position 43b and the block rear position 43c of the radio base station 3 shown in FIG. 4B, which is the radio base station 2 when the radio base station 2 is abnormal. The coverage area by the station 3 is shown. The area from A2001 + 0 to A2003 + 50 corresponds to the block front position 43b and the block rear position 43c of the wireless base station 3 shown in FIG. 4B, which is the wireless base station 2 when the wireless base station 2 is abnormal. The coverage area by the station 3 is shown.

  A1000 + 300 is a handover point of the radio base stations 1 and 2. A1004 + 50 is an extended handover point of the radio base stations 1 and 3 moved to the radio base station 2 side. A2001 + 0 is an extended handover point of the radio base stations 1 and 3 before being moved. A2003 + 50 is a handover point of the radio base stations 3 and 4. The same applies to the handover point in the downlink direction, and a description thereof will be omitted below.

  The operation of the train radio system when the radio control device 40 is provided will be described. The control range b (base boundary) of the ground control device can be determined regardless of the coverage area boundary (handover point) between the radio base stations 2 and 3. The wireless control device needs to carry out communication control with the vehicle by holding the information management table shown in FIG.

  FIG. 6 is a first diagram for explaining the operation of the train radio system when the ID2 radio base station is normal. FIG. 6 shows the handover point of FIG. 5C and A1002 + 300. To A1004 + 300, the train 50 traveling in the upward direction is shown. When the train 50 is traveling in the area of the radio base station 2 in this way, the position information 60 is extracted in the radio base station 2 that has received the transmission frame from the train 50, and the extracted information is the radio control device 40. Received at.

  The wireless control device 40 that has received the position information 60 from the wireless base station 2 refers to the information management table 43-1 to confirm that the train 50 is in the area of the wireless base station 2. When the position information 60 and the information management table 43-1 do not match, the wireless control device 40 does not pass this information to the ground control device. When the position information 60 and the information management table 43-1 match, it is understood that the train 50 with the vehicle ID 101 is present in the area of the radio base station 2. The wireless control device 40 refers to the information management table 43-1 to transmit the received information to the ground control device A that manages the wireless base station 2, and at the same time the ground control device A in the traveling direction of the train 50. Is also transmitted to the ground control device B adjacent to.

  The ground control device A adds information “destination vehicle ID 101” to be transmitted to the train 50 with the vehicle ID 101 to the control information 61 and transmits the information to the radio control device 40.

  The wireless control device 40 specifies that the train 50 is in the area of the wireless base station 2 by referring to the position information 60 of the train 50 with the vehicle ID 101 and the information management table 80-1. Then, the radio control device 40 transmits the information received from the ground control device A to the radio base station 2 and also to the radio base station 3 adjacent to the radio base station 2 in the traveling direction of the train 50.

  FIG. 7 is a second diagram for explaining the operation of the train radio system when the ID2 radio base station is normal. FIG. 7 shows the same handover point as in FIG. The flow of information when the running train 50 exceeds A1004 + 300 is schematically shown. The train 50 traveling in the upward direction exceeds A1004 + 300. The radio controller transmits the radio base station switching point to the on-board controller, for example, 1 km before. The on-board controller switches the radio base station for communication based on the information of the radio controller.

  Thus, when the train 50 traveling in the upward direction exceeds A1004 + 300, the transmission frame from the train 50 is received by the radio base station 3, and the radio base station 3 that has received this transmission frame extracts the position information 60. The extracted information is received by the wireless control device 40.

  The radio network controller 40 that has received the position information 60 from the radio base station 3 refers to the information management table 43-1 to determine that the train 50 is present in the area of the radio base station 3. Then, the radio base station ID is added to the position information 60 and transmitted to the ground control device B that manages the radio base station 3, and the ground control device C adjacent to the ground control device B in the traveling direction of the train 50 is transmitted. Also send.

  The ground control device B adds the information “destination vehicle ID 101” to be transmitted to the train 50 with the vehicle ID 101 to the control information 61 and transmits it to the radio control device 40.

  The wireless control device 40 specifies that the train 50 is present in the area of the wireless base station 3 by referring to the position information 60 of the train 50 with the vehicle ID 101 and the information management table 80-1. Then, the radio control device 40 transmits the information received from the ground control device B to the radio base station 3 and also to the radio base station 4 adjacent to the radio base station 3 in the traveling direction of the train 50.

  FIG. 8 is a first diagram for explaining the operation of the train radio system when the ID2 radio base station is abnormal. In FIG. 8, the handover point of FIG. To A1004 + 50, the train 50 running in the upward direction is shown. FIG. 8 shows a state in which the radio base stations 1 and 3 are backing up the coverage area of the radio base station 2 due to the occurrence of an abnormality in the radio base station 2.

  Thus, when an abnormality occurs in the radio base station 2, the train 50 traveling in the upward direction in the section from A1000 + 300 to A1004 + 50 is communicating with the radio base station 1. Therefore, the position information 60 is extracted in the wireless base station 1 that has received the transmission frame from the train 50, and the extracted information is received by the wireless control device 40.

  The wireless control device 40 that has detected the abnormality of the wireless base station 2 and has received the position information 60 from the wireless base station 1 refers to the information management table 43-2 so that the backup target is the wireless base station 2. And that the train 50 is present in the area of the radio base station 1. Then, the radio control device 40 adds the radio base station ID to the position information 60, transmits it to the ground control device A that manages the radio base station 1, and is adjacent to the ground control device A in the traveling direction of the train 50. To the ground control device B.

  The ground control device A adds information “destination vehicle ID 101” to be transmitted to the train 50 with the vehicle ID 101 to the control information 61 and transmits the information to the radio control device 40.

  The wireless control device 40 specifies that the train 50 is in the area of the wireless base station 1 by referring to the position information 60 of the train 50 with the vehicle ID 101 and the information management table 80-1. Then, the radio control device 40 transmits the information received from the ground control device A to the radio base station 1 and also to the radio base station 3 adjacent to the radio base station 2 in the traveling direction of the train 50.

  FIG. 9 is a second diagram for explaining the operation of the train radio system when the ID2 radio base station is abnormal. FIG. 9 shows the same handover points as in FIG. FIG. 6 schematically shows the flow of information when the traveling train 50 exceeds the extended handover point A1004 + 50.

  Thus, when the train 50 traveling in the upward direction exceeds A1004 + 50, the transmission frame from the train 50 is received by the radio base station 3, and the radio base station 3 that has received this transmission frame extracts the position information 60. The extracted information is received by the wireless control device 40.

  The wireless control device 40 that has detected the abnormality of the wireless base station 2 and has received the position information 60 from the wireless base station 3 refers to the information management table 43-2 so that the backup target is the wireless base station 2. And the fact that the train 50 is in the area of the radio base station 3. Then, the radio control device 40 adds the radio base station ID to the position information 60 and transmits it to the ground control device B that manages the radio base station 3, and is adjacent to the ground control device B in the traveling direction of the train 50. To the ground control device C.

  The ground control device B adds the information “destination vehicle ID 101” to be transmitted to the train 50 with the vehicle ID 101 to the control information 61 and transmits it to the radio control device 40.

  The wireless control device 40 specifies that the train 50 is present in the area of the wireless base station 3 by referring to the position information 60 of the train 50 with the vehicle ID 101 and the information management table 80-1. Then, the radio control device 40 transmits the information received from the ground control device B to the radio base station 3 and also to the radio base station 4 adjacent to the radio base station 3 in the traveling direction of the train 50.

  In the present embodiment, when the radio control apparatus 40 receives the position information 60 from the radio base station, the position information 60 is transferred to the ground control apparatus that manages the radio base station from which the position information 60 is transmitted. While transmitting, it is comprised so that it may transmit also to the other ground control apparatus adjacent to the said ground control apparatus in the advancing direction side of the train 50, It is not limited to this, The received positional information 60 Alternatively, the position information 60 may be transmitted only to the ground control device that manages the radio base station that is the transmission source. Even in such a configuration, it is possible to change the handover point only by temporarily stopping the wireless control device 40, so that it is possible to realize smooth train operation while suppressing the costs associated with system modification. .

  As described above, the train radio system according to the present embodiment has the train 50 based on the ground element information from the ground element arranged on the track on which the train 50 travels and the train speed detected by the train 50. The on-board control device 52 that controls the train speed by checking the train speed against the speed check pattern, and the on-board wireless device that transmits the position information 60 from the on-board control device 52 to the ground side. 51, the track is divided into a plurality of control ranges, arranged in each control range, a plurality of radio base stations 1 to 8 that perform radio communication with the on-vehicle wireless device 51, and arranged in each control range, A plurality of ground control devices A to D which receive the position information 60 via the radio base stations 1 to 8 and generate and output control information 61 for controlling the travel of the train 50 based on the position information 60; Knowledge of radio base stations 1-8 The information (43a), the control ranges (43b, 43c) of the ground control devices A to D, the ground control device (43d) as the transmission destination of the position information 60, and the radio base station (43e) as the transmission destination of the control information 61 The information management tables (43-1, 43-2) associated with each other, the transmission destination of the position information 60 from the radio base stations 1 to 8, the transmission destination of the control information 61 from the ground control devices A to D, A wireless control device 40 for controlling the wireless communication device 40. When the wireless control device 40 receives the position information 60 from the wireless base stations 1 to 8, the wireless control device 40 is based on the information management tables (43-1, 43-2). The transmission destination of the location information 60 is determined, and the received location information 60 is transmitted to the ground control devices A to D that manage the radio base stations 1 to 8 that are the transmission sources of the location information 60, and the ground control devices A to D are transmitted. When control information 61 from D is received, information management The transmission destination of the control information 61 is determined based on the tables (43-1, 43-2), and the received control information 61 is transferred to the radio base stations 1 to 8 managed by the ground control devices A to D. Since the transmission is performed, it is possible to change only the wireless control device 40 without changing the ground control devices A to D, and change the handover point by changing the management table. Smooth train operation can be realized while restraining.

  Moreover, when the radio network controller 40 according to the present embodiment receives the location information 60 from the radio base stations 1 to 8, the radio control device 40 stores the location information 60 based on the information management tables (43-1, 43-2). The transmission destination is determined, and the received position information 60 is transmitted to the ground control devices A to D that manage the wireless base stations 1 to 8 that are the transmission sources of the position information 60, and on the traveling direction side of the train 50. When the control information 61 is transmitted to other ground control devices adjacent to the ground control device and the control information 61 from the ground control devices A to D is received, this control information is based on the information management tables (43-1, 43-2). The transmission destination of 61 is determined, and the received control information 61 is transmitted to the radio base stations 1 to 8 managed by the ground control devices A to D, and is also transmitted to the radio base station on the traveling direction side of the train 50. Other adjacent radio bases It is configured to send to. With this configuration, not only can a smooth train operation be realized while suppressing costs associated with system refurbishment, but the ground control devices A to D that have received the position information 60 from the wireless control device 40 can generate the control information 61 without delay. And the handover can be executed without delay.

  Moreover, when the radio network controller 40 according to the present embodiment receives the location information 60 from the radio base stations 1 to 8, the radio control device 40 stores the location information 60 based on the information management tables (43-1, 43-2). The transmission destination is determined, and the received position information 60 is transmitted to the ground control devices A to D that manage the wireless base stations 1 to 8 that are the transmission sources of the position information 60, and on the traveling direction side of the train 50. When the control information 61 is transmitted to other ground control devices adjacent to the ground control device and the control information 61 from the ground control devices A to D is received, this control information is based on the information management tables (43-1, 43-2). 61 is determined, and the received control information 61 is transmitted to the radio base stations 1 to 8 managed by the ground control devices A to D. With this configuration, not only can a smooth train operation be realized while suppressing costs associated with system refurbishment, but the ground control devices A to D that have received the position information 60 from the wireless control device 40 can generate the control information 61 without delay. can do.

  Moreover, when the radio network controller 40 according to the present embodiment receives the location information 60 from the radio base stations 1 to 8, the radio control device 40 stores the location information 60 based on the information management tables (43-1, 43-2). The transmission destination is determined, and the received location information 60 is transmitted to the ground control devices A to D that manage the wireless base stations 1 to 8 that are the transmission sources of the location information 60, and the control from the ground control devices A to D is performed. When the information 61 is received, the transmission destination of the control information 61 is determined based on the information management tables (43-1, 43-2), and the received control information 61 is managed by the ground control devices A to D. Are transmitted to the radio base stations 1 to 8, and are also transmitted to other radio base stations adjacent to the radio base station on the traveling direction side of the train 50. With this configuration, it is possible not only to realize smooth train operation while suppressing the cost associated with system modification, but also to execute handover without delay.

  The train radio system according to the embodiment of the present invention shows an example of the content of the present invention, and can be combined with another known technique, and does not depart from the gist of the present invention. Of course, it is possible to change the configuration such as omitting a part of the range.

  As described above, the present invention is mainly applicable to train radio systems, and is particularly useful as an invention capable of realizing smooth train operation while suppressing costs associated with system modifications.

  1, 2, 3, 4, 5, 6, 7, 8 radio base station, 10 on-line management device, 20, 30 network, 40 radio control device, 43a, 80a radio base station ID, 43b, 80b block front position, 43c, 80c block rear position, 43d B → A information distribution destination radio base station, 43e, 80d A → B information distribution destination radio base station, 43f, 80e backup target radio base station ID, 43-1, 80-1 information management Table, 43-2, 80-2 Degeneration information management table, 50 trains, 51 on-board radio device, 52 on-board control device, 60 position information, 61 control information, 70 track, 70A, 70B, 70C, 70D control range , A, b, c, d, e Base boundaries.

Claims (4)

The position information of the train is generated based on the ground element information from the ground element arranged on the track on which the train travels and the train speed detected by the train, and the train speed is checked against the speed verification pattern. An on-board control device for controlling the train speed;
An on-vehicle wireless device that transmits the position information from the on-vehicle control device to the ground side;
The line is divided into a plurality of control ranges, a plurality of radio base stations that are arranged in each control range and perform radio communication with the on-board radio device, and
A plurality of ground control devices arranged in the control ranges, receiving the position information via the radio base stations, and generating and outputting control information for controlling the travel of the train based on the position information; ,
And an information management table in which at least the identification information of the radio base station, the control range of each ground control device, the ground control device to which the location information is transmitted, and the radio base station to which the control information is transmitted are associated. A radio control apparatus that controls a transmission destination of position information from the radio base station and a transmission destination of control information from the ground control apparatus;
With
The wireless control device
When the location information from the radio base station is received, the location information transmission destination is determined based on the information management table, and this location information is used to manage the radio base station that is the location information transmission source. To the control device,
When control information from the ground control device is received, a transmission destination of the control information is determined based on the information management table, and the received control information is transmitted to a radio base station managed by the ground control device A train radio system. The position information of the train is generated based on the ground element information from the ground element arranged on the track on which the train travels and the train speed detected by the train, and the train speed is checked against the speed verification pattern. An on-board control device for controlling the train speed;
An on-vehicle wireless device that transmits the position information from the on-vehicle control device to the ground side;
The line is divided into a plurality of control ranges, a plurality of radio base stations that are arranged in each control range and perform radio communication with the on-board radio device, and
A plurality of ground control devices arranged in the control ranges, receiving the position information via the radio base stations, and generating and outputting control information for controlling the travel of the train based on the position information; ,
And an information management table in which at least the identification information of the radio base station, the control range of each ground control device, the ground control device to which the location information is transmitted, and the radio base station to which the control information is transmitted are associated. A radio control apparatus that controls a transmission destination of position information from the radio base station and a transmission destination of control information from the ground control apparatus;
With
The wireless control device
When the location information from the radio base station is received, the location information transmission destination is determined based on the information management table, and this location information is used to manage the radio base station that is the location information transmission source. Transmit to the control device, and also to other ground control device adjacent to the ground control device on the traveling direction side of the train,
When control information from the ground control device is received, a transmission destination of the control information is determined based on the information management table, and the received control information is transmitted to a radio base station managed by the ground control device In addition, a train radio system characterized in that the train radio system is also transmitted to another radio base station adjacent to the radio base station on the traveling direction side of the train. The position information of the train is generated based on the ground element information from the ground element arranged on the track on which the train travels and the train speed detected by the train, and the train speed is checked against the speed verification pattern. An on-board control device for controlling the train speed;
An on-vehicle wireless device that transmits the position information from the on-vehicle control device to the ground side;
The line is divided into a plurality of control ranges, a plurality of radio base stations that are arranged in each control range and perform radio communication with the on-board radio device, and
A plurality of ground control devices arranged in the control ranges, receiving the position information via the radio base stations, and generating and outputting control information for controlling the travel of the train based on the position information; ,
And an information management table in which at least the identification information of the radio base station, the control range of each ground control device, the ground control device to which the location information is transmitted, and the radio base station to which the control information is transmitted are associated. A radio control apparatus that controls a transmission destination of position information from the radio base station and a transmission destination of control information from the ground control apparatus;
With
The wireless control device
When the location information from the radio base station is received, the location information transmission destination is determined based on the information management table, and this location information is used to manage the radio base station that is the location information transmission source. Transmit to the control device, and also to other ground control device adjacent to the ground control device on the traveling direction side of the train,
When control information from the ground control device is received, a transmission destination of the control information is determined based on the information management table, and the received control information is transmitted to a radio base station managed by the ground control device A train radio system. The position information of the train is generated based on the ground element information from the ground element arranged on the track on which the train travels and the train speed detected by the train, and the train speed is checked against the speed verification pattern. An on-board control device for controlling the train speed;
An on-vehicle wireless device that transmits the position information from the on-vehicle control device to the ground side;
The line is divided into a plurality of control ranges, a plurality of radio base stations that are arranged in each control range and perform radio communication with the on-board radio device, and
A plurality of ground control devices arranged in the control ranges, receiving the position information via the radio base stations, and generating and outputting control information for controlling the travel of the train based on the position information; ,
And an information management table in which at least the identification information of the radio base station, the control range of each ground control device, the ground control device to which the location information is transmitted, and the radio base station to which the control information is transmitted are associated. A radio control apparatus that controls a transmission destination of position information from the radio base station and a transmission destination of control information from the ground control apparatus;
With
The wireless control device
When the location information from the radio base station is received, the location information transmission destination is determined based on the information management table, and this location information is used to manage the radio base station that is the location information transmission source. To the control device,
When control information from the ground control device is received, a transmission destination of the control information is determined based on the information management table, and the received control information is transmitted to a radio base station managed by the ground control device In addition, a train radio system characterized in that the train radio system is also transmitted to another radio base station adjacent to the radio base station on the traveling direction side of the train.

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