JP5023685B2 - Signal security system - Google Patents

Description

The present invention is a railway, monorail, LRT (Light Rail Transit), AGT (Automated).
It is related to signal security when operating Guided Train).

  In railways, the interlocking device has traditionally been the core of the signal security system, a track circuit that detects the presence of the train, a switch that branches off the track, and a traffic light that transmits permission or disapproval to the train. In conjunction with this, a system has been constructed that does not allow trains to enter the path where there is a risk of collision or derailment.

  In recent years, as disclosed in Patent Document 1, a method has been developed in which a central device wirelessly captures a train position from an on-board device, and interlocks and controls a switch and an in-vehicle signal based on the train position.

Japanese Patent Publication No. 7-41840 (all pages)

  The core of the conventional signal security system is an interlocking device. The interlocking device is equipped with input / output means for all track circuits in the jurisdiction range, all rolling devices, all traffic lights, etc., and the logic to control the devices in conjunction to prevent collision and derailment of the train. It is a device assembled with relays and electronic computers. Inevitably, the built-in interlocking logic becomes large and complicated, and its design and manufacturing require a great deal of cost. In addition, the amount of cable wiring connecting the equipment along each line is enormous, and a great amount of cost is required for its installation and maintenance.

  Also, in the methods that have been developed in recent years, the safety logic for controlling the switches and traffic lights in conjunction with each other so as to prevent the collision and derailment of the train based on the position information from the train is large and complex, and the device itself is also growing. For this reason, a great deal of cost is required for logic design and device manufacturing.

  An object of the present invention is to provide a signal security system that is low in design cost and manufacturing cost.

A telegram that has a roadside device that exists in a predetermined section and a route instruction device that exists in a predetermined section and directs the course of a train, , Equipment status information and reservation information, equipment along the line has a train detection device that detects the status of the train, and a traffic signal device that controls the traffic signal , It has on-line information on whether or not a train is in the train detection section, and the telegram reservation information shows on-line reservation information on whether or not there is a train on-line reservation for each train detection section of the train detection device The train detection device has a means for updating the received line status information of the received message according to the detected status of the train, and when updating the status information from "present" to "non-present" A way to update information to "No reservation" And a means for transmitting the updated message to other equipment along the route or to the route indicating device. The route indicating device has the presence status information of the received message as “non-present”, and the received reservation of the received message When the information is "Non-reservation", based on the route instruction, the means for updating the reservation information of the train detection section of the train detection device to "reservation of route" and the updated message are sent to other devices along the line Means for controlling the traffic signal to transmit either “progress permission” or “prohibition of progress” based on the received line information and reservation information of the message. And a means for transmitting the received electronic message to another railroad equipment or route instruction device .

In addition, the equipment along the line has a traveling path branching device that controls the switch, and the message status information includes direction information indicating in which direction the switch is pointing, The reservation information includes direction reservation information indicating in which direction the switch is reserved, and the route instruction device has received the presence status information of the received message as “not present”. In the case where the on-line reservation information of the message is “non-reserved”, there is provided means for updating the direction reservation information to “reservation in the direction to be opened”, and the travel path branching device is based on the received direction reservation information of the message Means for determining the direction in which the switch is to be opened, means for updating the direction information of the received telegram based on the direction in which the switch is facing, a structure comprising means for transmitting to the route instruction device.

Further, means for controlling the traffic of Shin Unit devices, the on-rail state information of the message is "Hizaisen", a rail opinions on train detection section of the train detecting device "path reservation", direction information If but indicating that "faces the direction to be opened" indicates a "progress permitted" with respect to a train, other configurations Metropolitan that controls the traffic signal to indicate "progress not permitted" in the case of To do.

  ADVANTAGE OF THE INVENTION According to this invention, the signal security system with a low design cost and manufacturing cost can be provided.

  A configuration of a signal security system according to an embodiment of the present invention is shown in FIG.

  The railway equipment constituting the signal security system of this embodiment is a train detection device, a switch, a travel path branching device that controls the switch, a traffic signal, and a traffic signal device that controls the traffic signal.

The signal security system according to the present embodiment includes a plurality of railway devices existing in a predetermined section (a train detection device 1 that detects the position of a train on a travel route, a travel that controls a switch that branches the travel route) Road branching device 2, signal device 3 that controls traffic signals and transmits progress permission or disapproval to trains) etc., and exists in the same predetermined section, and instructions on the course of trains by commanders etc. And a safety message 5 that circulates between the train detection device 1, the travel route branching device 2, the traffic light device 3, and the route indication device 4. In this way, by circulating a telegram among the train detection device 1, the traveling route branching device 2, the traffic signal device 3, and the route instruction device 4, each device can process information in a distributed manner. The logic and the device itself to be incorporated can be reduced, and a signal security system having a low design cost and manufacturing cost can be provided.

  Here, the security message 5 is a message for constructing a security system, and is hereinafter referred to as a message or a security message.

  In the present embodiment, a station having one branch on a travel route that is a predetermined section as shown in FIG. 2 is further divided into a plurality of predetermined sections, here four train detection sections, Assume that four traffic lights are installed. The train detection section may be set finely, and if it is set as finely as possible, it becomes a signal security system for moving blockage.

  In general, the direction of branching is called a stationary direction and a different direction is called an inversion. In the present embodiment, the direction in which the travel path is a straight line is defined as a localization, and the direction different from that is defined as an inversion.

  As shown in FIG. 3, the traffic light 1A is in charge of the route 1R that travels from the train detection section 1T to the 2T, 3T with the branch 1S turned upside down. Similarly, the traffic light 2A travels from the 1T to the 2T, 4T with the 1S being localized. In charge of 2R, the traffic light 3B is in charge of the route 3L that goes from 2T to 1T with 1S in the reverse position, and the traffic light 4B is in charge of the route 4L that goes from 2T to 1T with the 1S being localized. A train detection device 1 is installed in each train detection section, a travel route branch device 2 is installed at a branch point, a traffic signal device 3 is installed in each traffic light, and a route instruction device 4 is installed in a command room. . The train detection device 1, the traveling route branching device 2, the traffic signal device 3, and the route instruction device 4 are connected to each other by communication means possessed by each device, and the security message is circulated. In the present embodiment, as shown in FIG. 2, the security message is circulated. The patrol route of the security message may be set freely, and there may be a device that patrols a plurality of times per round. In this case, depending on the arrangement position of the apparatus, the communication distance can be shortened and the communication cost can be suppressed.

  As shown in FIG. 4A, a mode in which a security message is transmitted and received in order with another device centering on one device is also conceivable. In this case, the central device can always grasp the update status of the security message and the status of each communication channel. In addition, each device may be provided with means capable of changing the patrol route of the security message. In this case, even if a part of the communication path is interrupted, the security message can be bypassed and transmitted. The communication means for transmitting the security message between the devices may be a wired system using a telephone line or a LAN, or a wireless system using a wireless LAN, satellite, LCX, mobile phone, or the like. Of course, a combination of these methods may be used.

  FIG. 4B illustrates an example of a configuration including a communication unit that transmits a security message between devices.

  A signal security device in which a central interlocking device 10 and field devices are connected via a network 11 can be considered. The normal operation in this configuration is transmission of a control message from the interlocking device 10 to the traffic signal device 3 and the route indicating device 4, and display from the train detection device 1, the traffic signal device 3, and the route display device 4 to the interlocking device 10. It is an information message. Here, the train detection device 1, the traffic signal device 3, and the route display device 4 are collectively referred to as a field device. When there is an interlocking device that is a central device, there is no direct communication between field devices via the network 11.

However, when the network 11 has a function of directly communicating between field devices, the present invention functions as means for realizing a backup function of a signal security device to which the network is applied. In other words, in the normal state, the field device is operated by the control of the central interlocking device 10 as in the case of the conventional signal security device. The interlocking function can be continued by communicating a security message.
For this purpose, each field device requires a function for detecting whether or not the central interlocking device is operating normally.

  In general, the interlocking device communicates with the field device at regular intervals, so if the communication with the interlocking device is interrupted for a certain period of time when viewed from the field device side, it is determined that the central interlocking device has failed, and security control of the field device is performed. Switch logic.

  As shown in FIG. 5, the contents of the security message are train detection section information and travel path branch information. The train detection section information is composed of on-line information and reservation information of each train detection section. The standing line information is state information of the train detection device 1 and is information indicating whether or not the train is in the train detection section, and the train detection result by the train detection device 1 is reflected. The reservation information is on-line reservation information indicating whether or not the on-line reservation of the train is made for each train detection section, and the input to the route instruction device 4 is reflected. Multiple reservations for the same section are not allowed. The travel path branch information includes direction information and reservation information of the switch at each branch. The direction information is the state information of the travel path branching device, which is the direction information indicating which direction the switch of the branch is facing, and reflects the result of the state inspection by the travel path branching device. The The reservation information is direction reservation information indicating in which direction the switch of the branch is reserved, and the input to the route instruction device 4 is reflected. The security message may be divided into a plurality of pieces so that the management information does not overlap. In this case, the amount of information per security message can be reduced, and the communication cost can be reduced.

  The train detection device 1 has train detection means that can detect the presence of a train in the section in charge. The train detection means may be, for example, a means for electrically insulating the rails as in a track circuit, connecting a power source at one end, and connecting a relay at the opposite side to detect a short circuit between the rails due to the train axle, A receiver provided at both ends, or a loop coil having a section length may be installed, and electromagnetic inductive coupling may be performed with an antenna installed in the train to detect entry and advance of the train. The train detection device 1 that has received the security message updates the presence line information of the own section of the security message, and updates the presence information of the message based on the state of the train detection device 1, for example, “not present line” when no train is detected. In other cases, it is updated to “present line”. At this time, in the case of updating from “present line” to “non-present line”, the reservation information of the own section is simultaneously updated to “no reservation”. The security message updated in this way is transmitted to the next device.

In addition, as shown in FIG. 6, instead of installing the train detection device 1 on the road, the means for calculating the train detection section where the own train is on the train, the means for communicating the security message, and the safety message are updated. The standing line recognition apparatus 6 provided with a means to do may be mounted. The on-line recognition device 6 that has received the security message updates the on-line information of the section where the own train is present in the security message to the “on-line” with the identification number of the own train, and the on-line information of the section not on the line. If there is a “present line” to which the identification number of the own train is attached, the present line information is updated to “non-present line” and the reservation information is updated to “no reservation” and transmitted to the next device. In addition, when the other apparatus has a means for calculating the train detection section where the train is present from the train position, the train position may be simply entered along the identification number of the own train in the security message. The means for calculating the train detection section where the own train is present can be calculated by comparing the train position detection result with the track data. The means for detecting the train position includes, for example, the position of a transponder, a tag or the like installed on the ground in advance as data, and means for detecting the position and measuring the position or measuring the rotational speed of the wheel to determine the travel distance. Means to calculate and GPS (Global
There are means for recognizing the absolute position using the Positioning System.

  The travel path branching device 2 has means for changing the travel path in order to branch the travel path. In general, a device for branching a traveling path is a tipping device. The road branching device 2 that has received the security message firstly determines the direction in which the switch should be opened based on the reservation information of the security message, and the direction of the message based on the status of the switch If the reservation information of the self-branch of the received security message indicates a fixed reservation, it indicates a fixed position and a reverse position reservation. Changes the travel path so that the branch is opposite. Next, the direction information of the self-branch of the security message is updated to “localization” when the branch is directed to the localization, “inverted” when the branch is directed to the inverted position, and “non-opened” otherwise. To do. The security message updated in this way is transmitted to the next device.

  The traffic signal device 3 is installed in the traffic signal and controls the traffic signal. The traffic signal has means for transmitting permission or disapproval of the route in charge for the train. The traffic signal device 3 has a function of determining whether the train is permitted to travel or not permitted to the traffic signal range based on the status information and reservation information of the message. In general, it is often the case that a blue light of a signal light is turned on to transmit a progress permission, and a red light is turned on to transmit a progress non-permission. Multiple traffic signal devices may be installed, and when installed on a train, "progress permission" or "prohibition prohibition" is given to the driver and the operation device on the train without building a traffic light on the ground. Can communicate. The traffic signal device has the train detection section and the branch in the assigned route and the direction to be opened as data. The traffic signal device that has received the security message indicates that the presence information of all train detection sections in the assigned route indicates “not present”, the reservation information indicates “reservation of assigned route”, and the direction of all branches in the assigned route. When the information indicates that “it is facing in the direction to be opened”, “progress permission” is transmitted to the train, and “progress prohibition” is transmitted to the train in other cases. The security message is transmitted as it is to the next device.

The route instruction device 4 has a function of receiving a train route instruction from the outside, that is, means for receiving an input of a route desired to be advanced by the train. The route receiving means may be, for example, a means for receiving a route instruction from a commander, a driver, etc. by providing buttons, switches, a display, a mouse, etc., or a central operation management device or a train operation device for managing the train operation. A means for receiving a route instruction from a central operation management device, a train operation device, or the like may be provided by providing a communication means. A communication function may be provided between the route instruction device 4 and the train or station staff. In this case, a route instruction can be given from a driver, a driving device, or a station staff on the vehicle away from the route instruction device 4. . Further, a plurality of route instruction devices 4 may be installed, and when installed in a plurality of locations, a route instruction can be given from a plurality of locations, and when installed in a train, a driving device or a driver on the train. The course can be instructed from the above. The route instructing device 4 has, as data, the train detection section and the branch in the route and the direction to be opened for all the routes under the jurisdiction. Further, the route instruction device 4 has a function of updating reservation information of devices along the line of the message based on the route instruction. When the route is input, the route instruction device 4 that has received the security message indicates that the on-line information of all train detection sections in the route indicates “non-present” and the reservation information indicates “no reservation”. The reservation information of all train detection sections in the route is updated to “reservation of the route” and the reservation information of all branches in the route to “reservation in the direction to be opened” and transmitted to the next device. In other cases, the security message is transmitted as it is to the next device. Note that the route instruction device may have a function of externally accepting a route instruction or refusing acceptance based on status information and reservation information of the equipment along the message.

  A mechanism for ensuring safety during train operation by the signal security system of the present invention will be described with reference to FIGS. 7 to 15 on the assumption that a train enters the station shown in FIG. Here, it is assumed that the instructor operates the route instruction device and enters the train A from the outside of the station when the train B is already on the train detection section 3T.

  The commander inputs the route 2R, which is the route that the train A wants to travel, to the route instruction device. When the route indicating device that has received the input receives the security message, the presence information of all the train detection sections (train detection section 1T, train detection section 2T, train detection section 4T) in the route 2R indicates “non-existing line”. If the reservation information indicates "no reservation", the reservation information of all train detection sections in the route 2R of the security message and the reservation information of all branches (branch 1S) in the route 2R are updated to the next device. Send to. FIG. 7 shows the contents of the received security message. In this case, the reservation information of the train detection section 1T, the train detection section 2T, and the train detection section 4T is updated to “route 2R reservation”, and the reservation information of the branch 1S is updated to “localization reservation”. FIG. 8 shows the contents of the updated security message.

  The travel path branching device installed in the branch 1S that has received the updated security message starts the operation of directing the branch to the localization because the reservation information of the self-branch indicates “localization reservation”. FIG. 9 shows the contents of the received security message. At the time when the security message is received, neither branch is facing, so the direction information of the self-branch is transmitted to the next device with “not open”.

  After the travel path is locked (locked) with the branch 1S facing the localization, the travel path branching device installed in the branch 1S updates the direction information of the self-branch to “localization” when the security message is received. To the next device. FIG. 10 shows the contents of the updated security message.

  In the traffic signal device installed in the traffic signal 2R that has received the updated security message, the on-line information of all train detection sections in the route 2R in charge of the own traffic signal indicates “not present”, and the reservation information indicates “reserved route 2R” Since the direction information of all branches in the route 2R indicates “the direction to be opened”, the travel permission is transmitted to the train A. FIG. 11 shows the content of the received security message.

  This is the mechanism until the permission to travel the route is transmitted to the train.

  From now on, this is the mechanism when a train that has been given permission to travel advances along the route.

  When the train A enters the train detection section 1T, the train detection device installed in the train detection section 1T detects the presence of the train. When the train detection device installed in the train detection section 1T receives the security message, the train detection apparatus updates the existing line information of its own section to “present line” and transmits it to the next device. FIG. 12 shows the contents of the updated security message. The same applies to the train detection section 2T and the train detection section 3T.

The traffic signal 2R that has received the updated security message transmits a progress non-permission to the subsequent train because the presence line information of the train detection section 1T in the route 2R in charge of the own traffic signal indicates “present line”.
FIG. 13 shows the contents of the received security message. At this time, after the approach of the preceding train, in order to prevent the subsequent train from mistaking the permission to proceed to the preceding train as the permission to proceed to the own train, the safety telegram updated by the train detection device is displayed in the traffic signal device during a sufficiently short time. It is desirable to be patrolled. In addition, the traffic signal device has the minimum traveling interval taking into consideration the visible distance of the traffic signal and the minimum operating time interval of the preceding train and the succeeding train as data, and the route in charge even if the minimum traveling interval has elapsed since the last reception of the security message In the case where a new security message that has circulated through all the train detection sections is not received, a function of unconditionally transmitting a progress prohibition to the train may be provided.

  When the train A advances into the train detection section 1T, the train detection device installed in the train detection section 1T does not detect the train line. When the train detection device installed in the train detection section 1T receives the security message, it updates the existing line information of its own section to “non-reserved line” and the reservation information to “non-reserved” and transmits it to the next device. FIG. 14 shows the contents of the updated security message. The same applies to the train detection section 2T.

  Even if the route 3L is input to advance the train B to the route instruction device until the train A advances in the train detection zone 2T, the train detection zone (train detection zone 2T, train detection zone 1T) in the route 3L is input. Of these sections, the in-line information indicates “reserved line” or the reservation information indicates “route 2R reservation”, so the route instruction device does not update the security message to instruct the route 3L. On the other hand, if the route 3L is input to the route instruction device after the train A has entered the train detection zone 2T, the train detection zone and the branch are reserved in the same manner as the reservation of the route 2R for the train A. Thereafter, when the branch 1S is turned to the upside and the road is locked (locked), the road branch device installed in the branch 1S updates the direction information of the self-branch of the security message to the upside. The traffic signal device installed in the traffic signal 3L that has received the telegram transmits a travel permission to the train B. FIG. 15 shows the contents of the security message at this time.

  As described above, in the signal security system according to the present invention, since the telegram only circulates between the train detection device, the travel route branching device, the traffic signal device, and the route instruction device, the entire track circuit in the jurisdiction range such as the interlocking device.・ Equipment that has input / output means with all line switches, all signal devices, etc. is not necessary, and switches and signals are installed on the basis of track line current line information and switch lock information. There is also no need for a device that incorporates logic for safe control. Therefore, the signal security system according to the present invention is advantageous in that the design cost and the manufacturing cost are low and the security during train operation can be ensured.

  In addition to this embodiment, branching information is not included in the safety telegram, and the road branching device determines the direction to be opened from the reservation information of the train detection section to which the own branch belongs and opens the branch. A form in which it should be directed is also conceivable. In this case, the train branching device has the train detection section to which the branch belongs, the route to which the branch is related and the direction to be opened as data, and when the security message is received, the train detection to which the branch belongs It has means for judging the direction to be opened from the reservation information of the section. In the case of the station shown in FIG. 2, the traveling path branching device installed in the branch 1S includes the belonging data “affiliation of the train detection section 2T” and “inversion for the route 1R and localization for the route 2R. , When the route 3L is inverted, and when the route 4L is fixed, it has data in the direction to be opened for the route, and when the reservation information of the train detection section 2T of the received security message indicates reservation of the route 1R When the route 2R is reserved, the position is determined. When the route 3L is reserved, the position is reversed. When the route 4L is reserved, the position is turned. In this embodiment, the amount of information in the security message can be reduced, and the communication cost can be reduced.

  In addition, if a security message cannot be transmitted to the next device due to a failure of the next device or disconnection of the communication path with the next device, etc., if the next device is a train detection device, the relevant section of the security message If the next device is a road branch device, update the direction information of the branch in the security message to “Non-open”, skip the circulation order, and A form having a function of transmitting a security message to the device is also conceivable. In this case, normal security can be secured for traveling on a route not related to the section or the branch, which is effective in improving the operating rate.

  Moreover, the form which installs the integrated apparatus which bundled up the several train detection apparatus, the travel path branching apparatus, and the signal apparatus is also considered. For example, as shown in FIG. 16, a safety message is circulated between the traffic signal integration device 7 that collectively controls the traffic signal device, the train detection integration device 8 that collectively controls the train detection device, the travel path branching device 2, and the route instruction device 4. An embodiment is conceivable. In this case, the number of devices that circulate the security message can be reduced, the communication distance can be shortened, and the communication cost can be reduced.

  In the embodiment in which the standing line recognition device is mounted on the vehicle instead of installing the train detection device on the travel path, for example, as shown in FIG. 17, the on-board integration device 9 that combines the traffic signal device 3 and the standing line recognition device 6 is installed on the vehicle. A form to be mounted on is also conceivable. In this embodiment, the number of ground signals can be reduced, and the maintenance cost of ground facilities can be reduced. Furthermore, if an on-vehicle integrated device that combines a traffic signal device, a route indication device, and an on-line recognition device is installed on the vehicle, the number of ground signal devices and ground route indication devices can be reduced, and maintenance costs and installation space for ground facilities can be reduced. Can be reduced.

  As described above, in the signal security system according to the present invention, the security message having the on-line information / reservation information and the branch direction information / reservation information of the train detection section is transferred to the train detection device, the travel route branch device, the traffic signal device, and the route. A round trip is made with the pointing device. Via this safety message, the train detection device can transmit the train detection result to the traffic signal device and the route instruction device, the travel route branch device can transmit the branching state to the traffic signal device, The reservation of the route can be transmitted to the traveling route branching device and the traffic signal device, and the traffic signal device allows the train to proceed or advance the assigned route based on the train detection result, the branch state and the route reservation. Can communicate disallowance. Thereby, the signal security system by this invention can drive a train safely.

  Note that such a signal security system can be applied not only to railway trains but also to cars, ships, airplanes, and the like that travel on predetermined routes by replacing the train detection function of the train detection device with a moving body detection function. . For example, a mobile body detection device and a traffic signal are installed in an expressway, a harbor, or an airport, and a security message is circulated between the mobile body detection device and the traffic signal to ensure security. Or in amusement parks, parks, etc., install moving body detection devices and traffic lights on predetermined routes and courses, and secure security by circulating a security message between the mobile body detection devices and the traffic lights. There are things to do. Furthermore, in consideration of safety, it may have a function of operating by interrupting an emergency stop such as a brake from a driver or an operator.

It is a figure which shows one Embodiment of the signal security system of this invention. It is a figure which shows one Embodiment of the patrol route of the security telegram in the signal security system of this invention. It is a figure which shows the charge course of each traffic signal in the signal security system of FIG. It is a figure which shows other embodiment of the signal security system of this invention. It is a figure which shows other embodiment of the signal security system of this invention. It is a figure which shows one Embodiment of the security message in the signal security system of FIG. It is a figure which shows other embodiment of the signal security system of this invention. It is a figure explaining the structure of security ensuring at the time of train operation in the present invention. It is a figure explaining the structure of security ensuring at the time of train operation in the present invention. It is a figure explaining the structure of security ensuring at the time of train operation in the present invention. It is a figure explaining the structure of security ensuring at the time of train operation in the present invention. It is a figure explaining the structure of security ensuring at the time of train operation in the present invention. It is a figure explaining the structure of security ensuring at the time of train operation in the present invention. It is a figure explaining the structure of security ensuring at the time of train operation in the present invention. It is a figure explaining the structure of security ensuring at the time of train operation in the present invention. It is a figure explaining the structure of security ensuring at the time of train operation in the present invention. It is a figure which shows other embodiment of the signal security system of this invention. It is a figure which shows other embodiment of the signal security system of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Train detection apparatus 2 Traveling path branching apparatus 3 Traffic signal apparatus 4 Course instruction apparatus 5 Security telegram 6 Standing line recognition apparatus 7 Traffic signal integration apparatus 8 Train detection integration apparatus 9 On-board integration apparatus 10 Interlocking apparatus 11 Signal security apparatus network

Claims (3)

Equipment along the pre-determined section,
A route indicating device that exists in the predetermined section and indicates the route of the train, and
A telegram that circulates between the lineside equipment and the route instruction device has status information and reservation information of the lineside equipment,
The lineside equipment has a train detection device that detects the on-line state of the train, and a traffic light device that controls the traffic light ,
The state information of the message has on-line information on whether or not a train is in the train detection section of the train detection device,
The telegram reservation information has on-line reservation information indicating whether or not the train on-line reservation is made for each train detection section of the train detection device,
The train detection device is configured to update the received line status information of the received message based on the detected status of the train, and when the status information is updated from “present line” to “not present line”, the presence line reservation information Means for updating the message to "no reservation", and means for transmitting the updated message to other railway equipment or the route instruction device,
The route instruction device, when the on-line status information of the received message is "not on-line" and the on-line reservation information of the received message is "no reservation", the train detection section of the train detection device Means for updating the on-line reservation information to “reservation of the route”, and means for transmitting the updated message to other railway equipment ,
The traffic signal device controls the traffic signal to transmit either “progress permission” or “prohibition of progress” based on the received line information and reservation information of the message, and the received message Means for transmitting to other railway equipment or the route instruction device;
A signal security system comprising: The signal security system according to claim 1,
The railroad equipment has a traveling path branching device that controls the switch.
The state information of the message has direction information indicating in which direction the switch is pointing,
The message reservation information includes direction reservation information indicating in which direction the switch is reserved,
The route indicating device should “open” the direction reservation information when the on-line status information of the received message is “not on-line” and the on-line reservation information of the received message is “no reservation”. Means for updating to `` reservation of direction '',
The travel path branching device is configured to determine a direction in which the switch is to be opened based on the direction reservation information of the received message, and to detect the received direction information of the message. signaling system, characterized means for updating, based on the direction and, means for transmitting the telegram updated to other wayside equipment or the course indication unit, in that it comprises. The signal security system according to claim 2 ,
Means for controlling the traffic lights before Symbol traffic signal device, the on-rail state information of the telegram is "Hizaisen" rail opinions on train detection section of the train detection device is a "path reservation", the If the direction information indicates that "faces the direction to be opened" indicates a "progress permitted" with respect to a train, that controls the traffic to indicate "progress not permitted" otherwise , A signal security system characterized by that.

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