JP5640130B1 - Electronic interlocking system - Google Patents

Abstract

[PROBLEMS] To realize interlocking technology capable of reducing the cost of installation and maintenance while ensuring safety. The electronic interlocking system 1 connects the interlocking main apparatus 10 and the field terminal 20 with a sparse transmission communication line N1 that performs low-frequency communication, and connects between the field terminal 20 and the field device 40. The field terminals 20 are connected to each other via a dense transmission communication line N2 that performs high-frequency communication. The interlocking main device 10 performs processing related to the course configuration, but does not continuously monitor the state of the field device 40 continuously, and the field terminal 20 monitors the state of the field device 40. [Selection] Figure 1

Description

  The present invention relates to an electronic interlocking system.

  2. Description of the Related Art In railways, there is an electronic interlocking device as a device that operates field devices such as traffic lights, switchboards, track circuits, and the like, which are operation and security facilities in a stop such as a station, in a chain relationship. This electronic interlocking device includes a central interlocking system that targets a plurality of stations in addition to a system that targets one station (stop) premises (see Patent Document 1 as an example of the central interlocking system). Regardless of the method, the interlocking main unit of the electronic interlocking device is responsible for all functions related to the chain from the state monitoring of the field device to the state transition instruction (operation instruction) of the field device. The electronic terminal device is responsible for the interface function with the device. Since the electronic terminal device is provided for each group in which field devices are arbitrarily grouped (may be a group for each field device), the interlocking main device and the electronic terminal device have a one-to-N relationship, It is necessary to establish communication connection with each other. Since the electronic interlocking device is required to be safe and fast in train operation, the transmission path between the interlocking main device and each electronic terminal device is realized by a relatively high-speed dedicated line such as an optical LAN. It was common.

JP 2000-198440 A

  However, a relatively high-speed dedicated line such as an optical LAN has a problem of high installation cost and maintenance cost. For example, a large number of electronic terminal devices are required for an electronic interlocking device in a large station. Further, when the electronic terminal device is installed near the field equipment, the distance between the interlocking main device and the electronic terminal device becomes long, which increases the cost and becomes a greater problem. In the case of the centralized linkage method, these problems are further increased.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to realize an interlocking technique capable of reducing the cost of installation and maintenance while ensuring safety.

The first invention for solving the above-described problems is
The main apparatus (for example, the interlocking main apparatus 10 in FIG. 1) and the field device including at least the switch are changed based on the state change instruction from the main apparatus, and provided for each section range where the route is divided. An electronic interlocking system (for example, electronic interlocking system 1 of FIG. 1) comprising a plurality of on-site terminals (for example, on-site terminal 20 of FIG. 1),
The main unit is
Range determination means (for example, the field device allocation table 330 in FIG. 9) for determining the division range related to the course of the train,
Transmitting a state transition instruction relating to a field device required for the route configuration of the train to the field terminal in charge of the determined section range, and obtaining an operation state of the field device from the field terminal. A route configuration control means (for example, a route configuration unit 210 in FIG. 6) configured to perform a route,
With
The field terminal is
A state transition control means (for example, the field device state transition unit 520 in FIG. 10) that causes the field device to transition based on the state transition instruction received from the main device;
Monitoring means for monitoring the operation state of the field device (for example, the field device state monitoring unit 510 in FIG. 10);
With
Communication between the field terminal and the field device is performed at a relatively high frequency to ensure continuity of monitoring by the monitoring means, and the main device does not need to constantly monitor the operation state of the field device. Therefore, the electronic interlocking system realizes communication between the main apparatus and the field terminal as communication with relatively low frequency.

  At first glance, the relationship between the main device of the first invention and the field terminal may seem to approximate the relationship between the conventional electronic interlocking device and the electronic terminal device described above as the background art. However, the first invention is an electronic interlocking system comprising a main device and a plurality of field terminals, and the main device performs processing related to the course configuration, but does not constantly monitor the state of the field device, The field terminal monitors the state of field equipment. Therefore, in the present invention, an electronic interlocking system in which the communication between the field terminal and the field device is a relatively high frequency communication, and the communication between the main apparatus and the field terminal is a relatively low frequency communication. Can be realized. In other words, without using a relatively high-speed dedicated line for communication between the main unit and each on-site terminal, it is possible to reduce the cost required for the construction and maintenance of an electronic interlocking system while ensuring the essential safety for railways. Can do.

The second invention is the electronic interlocking system of the first invention,
The on-site terminal further includes on-line grasping means (for example, on-line monitoring unit 516 in FIG. 10) for grasping the presence / absence of a train line in each closed section included in the division range in charge;
The main unit is
A track information acquisition unit (for example, the track configuration unit 210 and the track cancellation unit 220 in FIG. 6) that acquires the latest track information indicating the presence / absence of the train track ascertained by the track tracking unit;
Route locking means for performing path locking that locks and unlocks each block section based on the block section and the on-line information related to the progress of the train (for example, the path configuration section 210 and the path cancellation section in FIG. 6). 220),
Further comprising
The route configuration control means determines whether or not the route configuration of the target train is possible using the locked state by the route locking means, and transmits the state transition instruction when it is determined to be possible.
It is an electronic interlocking system.

  According to the second invention, the site terminal grasps the presence / absence of a train line in each block section included in the assigned section range. And the main unit acquires the track information indicating the presence / absence of the train line of each block section acquired from the field terminal, and based on this, performs the path lock that locks and unlocks each block section, and this Whether or not the route configuration of the target train is possible is determined using the locked state, and when it is determined that it is possible, a state transition instruction of the field device is transmitted to the field terminal.

The third invention is the electronic interlocking system of the second invention,
The on-site terminal is a switch-locking means (for example, FIG. 10) that performs the lock and / or display lock of the switch based on the presence / absence of the train line ascertained by the presence-line grasping means. Display / lock lock monitoring unit 540),
The state transition control means executes the state transition control of the switch based on the state transition instruction received from the main device when the lock state by the switch lock means is unlocked,
It is an electronic interlocking system.

  According to the third aspect of the invention, the on-site terminal performs the lock and / or display lock of the turning machine based on the presence / absence of the train line in each block section that has been grasped, and from the main device. When the lock state is unlocked, the state transition control of the switch is executed based on the received state transition instruction.

The fourth invention is the electronic interlocking system according to any one of the first to third inventions,
The field equipment includes a traffic light,
The route configuration control means includes means for transmitting, as the state transition instruction, an instruction for transitioning the signal display to the progress display.
The field terminal further includes stop indication transition control means (for example, the signal display transition unit 524 in FIG. 10) that changes the indication of the traffic light to the stop indication using the monitoring result of the monitoring means.
It is an electronic interlocking system.

  According to the fourth aspect of the invention, the field terminal monitors the state of the traffic signal as the field device, changes the current signal status to the progress status according to the status transition instruction from the main unit, and displays the monitoring result. Use to change the display of the traffic light to the stop display.

1 is a schematic configuration diagram of an electronic interlocking system. Specific installation example 1 of an electronic interlocking system. Specific installation example 2 of an electronic interlocking system. Specific installation example 3 of the electronic interlocking system. Control sequence in an electronic interlocking system. The functional block diagram of an interlocking main apparatus. An example of the data structure of the switch lock state data. The data structural example of track circuit lock state data. The data structural example of a field device allocation table. Functional block diagram of a field terminal. An example of the data structure of the switchover state data. The data structural example of signal display data. Data configuration example of standing line data. The data structural example of the data which can be changed.

[System configuration]
FIG. 1 is a configuration diagram of an electronic interlocking system 1 in the present embodiment. As shown in FIG. 1, the electronic interlocking system 1 of the present embodiment includes an interlocking main device 10 and one or a plurality of field terminals 20 that control field devices 40 including a traffic light, a turning machine, and a track circuit. Configured. The on-site terminal 20 is determined for each section range that divides the route, and the on-site terminal 20 responsible for each section range is prepared. The interlocking main apparatus 10 is installed, for example, in the signal equipment room, but the site terminal 20 can be installed near the site equipment 40. In addition, the interlocking main apparatus 10 and each of the site terminals 20 are connected via the communication line N1 (first transmission path), and between the site terminal 20 and the site equipment 40, and the site terminal 20. The two are connected via a communication line N2 (second transmission path).

  The communication line N1 realizes “sparse transmission” communication with a relatively low communication frequency. In this embodiment, “sparse transmission” means a fixed-cycle transmission in which a communication connection is established but a communication cycle is about “5 to 10 s”. Transmission at any time for communication may be used. Further, the communication speed may be lower than that of “fine transmission”. The communication line N1 is configured by, for example, wired communication using a twisted pair cable, or a wireless communication line such as a mobile phone network or a wireless LAN.

  On the other hand, the communication line N2 realizes “smudge transmission” communication having a higher communication frequency than the communication line N1. In the present embodiment, “smear transmission” means fixed-cycle communication with a communication cycle of “several 100 ms”. In addition, it is preferable that the communication speed be higher than that of sparse transmission. The communication line N2 is configured by a dedicated LAN or an electrical actual wiring that is configured by, for example, an optical cable.

  The interlocking main device 10 controls the field device 40 via the field terminal 20 in response to a route control request from the host device 30 such as a CTC device, thereby configuring and canceling the requested route (setting). (Relocation).

  The site terminal 20 controls the site terminal 20 in accordance with instructions from the interlocking main apparatus 10. As described in the “Background Art” column, the conventional electronic terminal device has a role as an interface function between the interlocking main device and the field device, and therefore monitors the operation state of the field device (meaning continuous continuous monitoring). The same shall apply hereinafter) and all instructions for changing the operating state were the role of the interlocking main unit. However, the interlocking main apparatus 10 of this embodiment does not continuously monitor the operation state of the field device 40, and the field terminal 20 monitors the operation state of the field device 40, and the interlocking operation is performed according to the operation state. It does not communicate with the main apparatus 10 and bears a local interlocking function of the on-site equipment 40 within the controlled area. Details will be described later.

[Interlocking function]
The interlocking function in the electronic interlocking system 1 is divided and implemented in each of the interlocking main apparatus 10 and the site terminal 20 according to the function characteristics.

  The interlocking main device 10 is equipped with a function for changing the control state according to the train traveling. Specifically, 1) Acceptance of a route control request from the host device 30, 2) Control of the turning machine excluding the check lock, 3) Check of route opening, 4) Approach lock, 5) Track lock 6) Functions such as signal control until progress indication are implemented.

  On the other hand, the field terminal 20 has a state monitoring function regarding the field device 40 in the controlled area and only the state of the field apparatus 40 in the controlled area, or the state of the field apparatus 40 in the controlled area. In addition, an interlocking function (hereinafter referred to as “local interlocking within the partition range”) that can be realized by using the state of the field device 40 in the nearby partition range received from the other field terminal 20 is implemented. Yes. Specifically, functions such as 7) train presence detection and track tracking function, 8) signal control after progress indication, 9) check lock, 10) inward path detection, 11) display lock, etc. Has been implemented.

  In summary, the interlocking main device 10 instructs the field terminal 20 in each section range so that the field device 40 is in an operation state related to a desired linkage relationship. And it waits until it notifies that the field device 40 changed to the desired operation state from the field terminal 20, and gives the next instruction | indication with the said notification.

  On the other hand, the field terminal 20 controls the operation of the field device 40 in accordance with an instruction from the interlocking main apparatus 10, but the field terminal 20 controls the operation state of the field device 40. Moreover, since the site terminal 20 has a local interlocking function within the area of the section in which the site terminal 20 is in charge, the operation state of the site device 40 may be changed by the function. Therefore, depending on the state of the field device 40, the field device 40 may not be able to immediately transition to the operation state corresponding to the instruction from the interlocking main device 10. In that case, after the transition can be performed, the operation state of the field device 40 is transitioned, and a notification of the completion of the operation control is transmitted to the interlocking main apparatus 10.

[Installation form]
A specific construction example of the electronic interlocking system 1 will be described. 2 to 4 show three forms 1 to 3 as construction examples of the electronic interlocking system 1, respectively.

(Form 1)
In the form (form 1) shown in FIG. 2, the electronic interlocking system 1 is constructed for one station, and is composed of one interlocking main apparatus 10 and an on-site terminal 20. In this form 1, the on-site terminal 20 is in charge of the entire target station as a demarcation range, monitors the operation state of all the on-site devices 40 installed in the station, and within the demarcation range of the jurisdiction. Execute the local linkage function.

(Form 2)
In the form shown in FIG. 3 (form 2), the electronic interlocking system 1 is constructed for one station, but one interlocking main apparatus 10 and a plurality of (two in FIG. 3) field terminals. 20. In this form 2, each of a plurality of field devices 40 divides a division range to be managed, and shares and controls all the field devices 40 installed in the target station. And the interlocking main apparatus 10 controls the field equipment 40 via each field terminal 20.

  The field terminal 20 acquires and monitors the operation state of the field device 40 in the section range in charge of the area, and also determines the operation state of the field device 40 in the section range in charge of the other field terminal 20 between the field terminals 20. Give and receive each other. Therefore, each site terminal 20 acquires the operating state of all the site devices 40 installed in the target station. And the spot terminal 20 performs the local interlocking | linkage function (function of 7-7-11) mentioned above in the section range to be in charge. That is, in the form of FIG. 3, each field terminal 20 substantially divides and plays the same role as the field terminal 20 of FIG. 2.

(Form 3)
In the form shown in FIG. 4 (form 3), the electronic interlocking system 1 is constructed for a plurality of stations, and includes one interlocking main apparatus 10 and a plurality of on-site terminals 20 installed at each target station. Configured. This is a form corresponding to a so-called centralized interlocking system. In this mode 3, each of the site terminals 20 has the entire target station as a demarcation range, and the operation state is monitored for all the local terminals 20 installed in the target station, and the local area within the demarcation range in charge is controlled. Executes the function of interlocking.

  As described above, various forms of the electronic interlocking system 1 can be considered, but in the following, as an example, the electronic interlocking system 1 targets one station, and each of the interlocking main devices 10 and A description will be given assuming that the form is configured by the site terminal 20 (form 1: see FIG. 2).

[Control sequence]
FIG. 5 is a control sequence in the electronic interlocking system 1. There are mainly four “scenes (A) to (D)” in the control sequence.

(A) Course setting In response to a course configuration request from the host device 30, a course is set. Specifically, when the interlocking main device 10 receives the route configuration request from the host device 30, it is possible to set the requested route, that is, all the turning machines on the route and the track Determine if the circuit is unlocked. If the course setting is possible, the interlocking main apparatus 10 controls the switching state of the corresponding turning machine via the site terminal 20. In other words, the interlocking main device 10 instructs the field terminal 20 including the turning machine corresponding to the section range to be controlled to switch the corresponding turning machine in a predetermined direction. Then, the on-site terminal 20 controls the conversion operation that switches the machine according to the instruction from the interlocking main device 10. When the conversion operation is completed, since the opening display is input to the field terminal 20 from the switching machine, the field terminal 20 returns a message indicating that the conversion operation is completed to the interlocking main apparatus 10.

  Next, the interlocking main device 10 acquires the on-line information from the site terminal 20, performs a route check to confirm that there is no train on the route, and performs approach locking and route locking. In addition, the operator instructs the locking of the turning machine via the site terminal 20. Then, the on-site terminal 20 performs control to lock the machine according to the instruction from the interlocking main device 10. When the locking operation is completed, the lock display is input from the switch to the field terminal 20, so that the field terminal 20 returns to the interlocking main apparatus 10 that the locking operation is completed. When the switch of the switch and the lock are completed, the interlocking main device 10 displays the corresponding traffic light in blue (progress display) via the site terminal 20.

(B) Signal control condition monitoring The route signal control condition set in the above-described (A) course setting is continuously monitored. Specifically, the field terminal 20 checks the train detection signal by the track circuit and the switching state of the toppling machine at any time, and if the signal control condition is not satisfied, the corresponding traffic signal is red signaled (stop indication). And The failure of the signal control condition corresponds to, for example, detection of a train entering the inside of the route. This (B) signal control condition monitoring is based on only the information on the section range that the site terminal 20 is in charge of, or in addition to the information on the section range that the site terminal 20 is in charge of, in addition to the information on the nearby section ranges received from the other site terminals 20. The communication between the interlocking main apparatus 10 and the on-site terminal 20 is not particularly performed.

(C) Cancellation (relocation)
In response to a route cancellation request from the host device 30, the route is canceled. Specifically, when the interlocking main apparatus 10 receives a route cancellation request from the higher-level apparatus 30, the interlocking main apparatus 10 sets the corresponding traffic signal to a red signal (stop indication) via the site terminal 20. Next, the on-site terminal 20 is requested for an approaching section and a tracked state of the route. Then, the site terminal 20 changes the change at any time at the timing of detecting the passage inward or the passage lock passage, or the change in the status of the approaching section or the inward track of the route in the section area under its control. The latest on-line information including is transmitted to the interlocking main apparatus 10. Then, the interlocking main device 10 unlocks the approach lock and the path lock according to the standing line information from the site terminal 20. Thereafter, the switch is unlocked, and the site terminal 20 is notified that the unlocked switch can be converted.

(D) Lock Lock Monitoring In addition to the above-mentioned (B) signal control condition monitoring, continuous monitoring of the lock lock and the display lock is performed. Specifically, the site terminal 20 monitors the train detection signal and the display of the traffic signal by the track circuit at any time in the section area that is in charge, for example, if it detects the approach of the train or the progress of the traffic signal Use locks and display locks that prohibit the conversion of the machine. This (D) lock monitoring is executed based only on the information on the section range to be managed or on the basis of the information on the nearby section range received from the other site terminal 20 in addition to the information on the section range to be managed. Communication between the main apparatus 10 and the field terminal 20 is not particularly performed.

  As described above, in the electronic interlocking system 1, (A) the course configuration and (C) the course cancellation are performed mainly by the interlocking main apparatus 10, (B) the signal control condition monitoring, and (D). The lock terminal monitoring is performed mainly by the site terminal 20.

  (B) Signal control condition monitoring and (D) Lock lock monitoring are related to the safety of railways. Therefore, the state of the field equipment 40 is continuously monitored, and the state change of the field equipment 40 is quickly detected. It is necessary to promptly change the state of the field device 40 according to the state change. For this reason, the field terminal 20 connected to the field device 40 through the densely-transmitted communication line N2 performs security without any communication with the interlocking main apparatus 10, thereby ensuring safety.

  On the other hand, (A) course configuration and (C) course cancellation do not require high-speed processing from the viewpoint of ensuring safety. For this reason, the communication line N1 which connects the interlocking main apparatus 10 and the field terminal 20 can be made sparse transmission.

[Function configuration]
(A) Interlocking main device 10
FIG. 6 is a functional configuration diagram of the interlocking main apparatus 10. According to FIG. 6, the interlocking main apparatus 10 includes an operation unit 110, a display unit 120, a first communication unit 130, a third communication unit 140, a processing unit 200, and a storage unit 300. It is a kind of computer.

  The operation unit 110 is realized by, for example, an input device such as a button switch, a keyboard, or a touch panel, and outputs an operation signal according to the operation of the administrator of the electronic interlocking system 1 to the processing unit 200. The display unit 120 is realized by a display device such as an LCD, and performs various displays according to display signals from the processing unit 200.

  The first communication unit 130 is connected to the communication line N <b> 1 and performs data communication with the site terminal 20 to be controlled and other site terminals 20. The third communication unit 140 performs data communication with an external device (mainly the host device 30).

  The processing unit 200 is realized by an arithmetic device such as a CPU, for example, and programs and data stored in the storage unit 300 and external devices (mainly, the host device 30 via the first communication unit 130 and the third communication unit 140). And overall control of the interlocking main device 10 based on data received from the field terminal 20). Further, the processing unit 200 includes a course configuration unit 210 and a course cancellation unit 220.

  The course configuration unit 210 configures a course in response to a course setting request from the host device 30. That is, the process regarding the course configuration (A) in FIG. 5 is performed. That is, with reference to the interlocking data 320 including the interlocking table that defines the chain condition, the connection data, etc., the field device 40 (signal, switch, or track circuit) related to the requested route is determined. Next, referring to the switch lock state data 340 and the track circuit lock state data 350, it is possible to set the requested course, that is, all the switch machines related to the requested course, Then, it is determined whether the track circuit is unlocked (not locked). If it cannot be set, it waits until it can be set.

  If it can be set, the field terminal 20 is instructed to switch the corresponding turning machine in a predetermined direction. And the course composition part 210 performs course opening check based on the opening display received from the field terminal 20, and track information, locks the corresponding traffic signal (approach lock), and locks the block section (track) Lock). Then, after locking the switch, the field terminal 20 is instructed to transition to the blue display (progress display) of the corresponding traffic light. Data on the route configured by the route configuration unit 210 is stored as the configuration route data 360.

  Here, the switch lock state data 340 is data in which the lock state of the switch is stored, and an example thereof is shown in FIG. As shown in FIG. 7, the switch lock state data 340 includes a lock state 342 indicating whether or not each of the switch 341 is locked, and if it is locked, The opening direction 343 is stored in association with each other.

  The track circuit lock state data 350 is data storing the lock state of the track circuit, and FIG. 8 shows an example thereof. As illustrated in FIG. 8, the track circuit lock state data 350 stores a lock state 352 indicating whether or not each track circuit 351 is locked in association with each other.

  Further, the switch / locking instruction of the switch is made with reference to the field device allocation table 330 to the field terminal 20 that controls the switch machine. FIG. 9 is a diagram illustrating an example of a data configuration of the field device allocation table 330. According to FIG. 9, the field device allocation table 330 associates each field terminal 332 whose control target is each station 331 with each field device 333 including a switch, a traffic light, and a track circuit as a control target. Storing. It can also be said that each of the on-site terminals 332 stores a section range under its control. When one site terminal 20 is in charge of one entire station, one site terminal 332 is stored in association with one station 331.

  The course cancellation unit 220 cancels (restores) the course in response to the course cancellation request from the host device 30. That is, the processing related to (C) course cancellation in FIG. 5 is performed. That is, with reference to the configuration route data 360, the field device 40 regarding the route to be canceled is determined. Next, the field terminal 20 is instructed to make a transition to a red signal (stop) of the corresponding traffic light. Subsequently, based on the on-line information acquired from the on-site terminal 20, the lock of the traffic light (access lock) and the lock of the track circuit (route lock) are unlocked. After that, unlock the switch and make it convertible.

  The storage unit 300 is realized by, for example, a storage device such as a ROM, a RAM, or a hard disk. The storage unit 300 stores system programs, data, and the like for the processing unit 200 to control the interlocking main device 10 in an integrated manner. As a work area, calculation results executed by the processing unit 200, data received from the first communication unit 130 and the third communication unit 140, and the like are temporarily stored. In the present embodiment, the storage unit 300 includes an interlocking main control program 310, interlocking data 320, an on-site equipment allocation table 330, an overturning machine lock state data 340, a track circuit lock state data 350, Configuration course data 360 is stored.

  FIG. 10 is a functional configuration diagram of the site terminal 20. According to FIG. 10, the site terminal 20 includes an operation unit 410, a display unit 420, a first communication unit 430, a second communication unit 440, a processing unit 500, and a storage unit 600. It is a kind of computer.

  The operation unit 410 is realized by an input device such as a button switch, a keyboard, or a touch panel, for example, and outputs an operation signal according to the operation of the administrator of the electronic interlocking system 1 to the processing unit 500. The display unit 420 is realized by a display device such as an LCD, for example, and performs various displays in accordance with display signals from the processing unit 500.

  The first communication unit 430 is connected to the communication line N1 and performs data communication with the interlocking main apparatus 10. The second communication unit 440 is connected to the communication line N <b> 2 and performs data communication with the field device 40 to be controlled and other field terminals 20.

  The processing unit 500 is realized by an arithmetic device such as a CPU, for example, and programs and data stored in the storage unit 600 and external devices (mainly linked main devices) via the first communication unit 430 and the second communication unit 440. 10 and on-site equipment 40) based on the data received from the on-site equipment 40). Further, the processing unit 500 includes a field device state monitoring unit 510, a field device state transition unit 520, a signal control condition monitoring unit 530, and a display / check lock monitoring unit 540.

  The field device state monitoring unit 510 includes a switch machine state monitoring unit 512, a traffic light state monitoring unit 514, and a standing line monitoring unit 516, and monitors the state of the field device 40 to be controlled.

  The switching machine state monitoring unit 512 communicates with the switching machine, which is one of the field devices 40, as needed, so that the current state of the switching machine is converted into the switching machine conversion state data 620. Remember and update.

  FIG. 11 is a data configuration example of the switchover state data 620. As shown in FIG. 11, the switch change state data 620 includes the current change state 622 indicating that the switch 621 to be controlled is locked, unlocked or including a change direction. Stored in association.

  The traffic light state monitoring unit 514 stores and updates the current state of the traffic light as signal display data 630 by communicating with a traffic light that is one of the field devices 40. FIG. 12 is a data configuration example of the signal display data 630. As shown in FIG. 12, the signal display data 630 stores a current display 632 such as red (stop) or blue (progress) in association with each of the traffic signals 631 to be controlled.

  The standing line monitoring unit 516 communicates with a track circuit that is one of the field devices 40 to monitor (understand) a train line on a track circuit basis. That is, the detection signal from the track circuit is received at any time, the presence / absence of the current train on each track circuit is determined, and stored / updated as the track data 640.

  FIG. 13 is a diagram illustrating an example of a data configuration of the standing line data 640. As shown in FIG. 13, the standing line data 640 stores the standing line presence / absence 642 based on the detection signal in association with each track circuit 641 to be controlled.

  The field device state transition unit 520 includes a switch machine transition unit 522 and a signal display transition unit 524, and transitions the state of the field device 40 in accordance with an instruction from the interlocking main apparatus 10.

  The switch machine transition unit 522 unlocks / converts / locks the switch machine in accordance with an instruction from the interlocking main device 10. At this time, state transition such as unlocking / converting / locking of the switch is performed only when the switch is convertible, and when it is not convertible, it waits until it is convertible. To do.

  The switchable / impossible of the switch is stored as the switchable / unchangeable data 660. FIG. 14 shows an example of the data structure of the switchable / unchangeable data 660. As shown in FIG. 14, the switchable / unchangeable data 660 stores a switchable / non-changeable 662 indicating that conversion is possible / impossible for each controlled switch 661.

  The signal display transition unit 524 displays the current signal indication in accordance with an instruction from the interlocking main apparatus 10.

  The signal control condition monitoring unit 530 monitors the establishment of the route signal control condition configured by the route configuration unit 210. That is, processing related to (B) signal control condition monitoring in FIG. 5 is performed. That is, it is always determined whether or not the signal control condition is satisfied by referring to the switchover state data 620, the signal display data 630, and the standing line data 640, and if the signal control condition is not satisfied, The signal to be stopped is displayed as a stop sign. Here, the signal control condition to be monitored is received from the interlocking main apparatus 10 and stored as the signal control condition data 650.

  The display / lock lock monitoring unit 540 performs display lock and lock lock. That is, the process related to (D) lock monitoring in FIG. 5 is performed. That is, it is always determined whether or not the display lock condition and the check lock condition are satisfied by referring to the switchover state data 620, the signal display data 630, and the standing line data 640. Then, if the corresponding turning machine cannot be changed, the turning machine change possibility data 660 is updated, and when the failure is released (when the failure is returned from the failure), the original state (immediately before becoming failure) Update to the state.

  The storage unit 600 is realized by a storage device such as a ROM, a RAM, and a hard disk, for example, and stores a system program and data for the processing unit 500 to control the field terminal 20 in an integrated manner. It is used as a work area and temporarily stores calculation results executed by the processing unit 500, data received from the first communication unit 430 and the second communication unit 440, and the like. In the present embodiment, the storage unit 600 stores the on-site control program 610, the switchover state data 620, the signal display data 630, the standing line data 640, the switchover changeability data 660, the signal Control condition data 650 is stored.

[Function and effect]
As described above, in the electronic interlocking system 1 of the present embodiment, the interlocking main device 10 and the field terminal 20 are connected by the sparse transmission communication line N1 that performs low-frequency communication, and the field terminal 20 and the field device 40 are connected. And the on-site terminals 20 are connected to each other via a dense transmission communication line N2 that performs high-frequency communication. The interlocking main apparatus 10 performs processing related to the course configuration, but does not continuously monitor the state of the field device 40 continuously, and the field terminal 20 monitors the state of the field device 40. In addition, the site terminal 20 executes a local interlocking function within the section area under its control without communicating with the interlocking main apparatus 10. As a result, the cost required for the construction and maintenance of the electronic interlocking system 1 while ensuring the safety essential for railways, without making the communication between the interlocking main device 10 and each of the field terminals 20 relatively fast dedicated lines. Can be reduced.

  In addition, the applicable embodiment of this invention is not limited to the above-mentioned embodiment, It can change suitably in the range which does not deviate from the meaning of this invention.

DESCRIPTION OF SYMBOLS 1 Electronic interlocking | linkage system 10 Interlocking main apparatus 110 Operation part, 120 Display part, 130 1st communication part, 140 3rd communication part 200 Processing part 210 Course configuration part, 220 Course cancellation part 300 Storage part 310 Interlocking main control program, 320 interlocking Data 330 On-site equipment allocation table, 340 Switch lock state data 350 Track circuit lock state data 360 Configuration course data 20 Field terminal 410 Operation unit 420 Display unit 430 First communication unit 440 Second communication unit 500 processing unit 510 field device state monitoring unit 512 switchover device state monitoring unit 514 signal device state monitoring unit 516 standing line monitoring unit 520 field device state transition unit 522 switchboard device transition unit 524 signal display transition unit 530 signal control Condition monitoring unit, 540 Display / check lock monitoring unit 600 Storage unit 610 On-site control pro Ram 620 rolling iron machine conversion state data, 630 signal aspect data 640-rail data 650 signal control condition data 660 translocation iron machine conversion feasibility data 30 higher-40 field devices

Claims (3)

An electronic device comprising: a main device; and a plurality of field terminals provided for each section range that divides a route, which causes state transition of at least field devices including a switch and a traffic light based on a state transition instruction from the main device An interlocking system,
The main unit is
A range determination means for determining a zone range related to the course of the train;
Wherein the said site terminal in charge of the determined section range, and transmitting a signal control condition of the state transition indication and traffic according to the point lock device required in the path configuration of the train, rolling iron machine from the field terminal Route configuration control means for configuring the route by acquiring the operating state of the field equipment including the conversion state of the
With
The field terminal is
Conversion status data indicating the switching status of the switch, signal display data indicating the status of the traffic signal, conversion availability data indicating whether the switching of the switch is possible, and trains in each block section Storage means for storing standing line data indicating presence / absence of a standing line;
A standing line grasping means for grasping presence / absence of a train line in each closed section and updating the standing line data;
Monitoring means for monitoring the operating state of the switch and the traffic light to update the conversion state data and the signal display data;
With reference to the conversion state data, the signal display data, and the standing line data, it is determined whether or not a given locking condition relating to the switch is successful, and the conversion availability data is updated according to the determination result. A tipping machine locking means,
Signal control condition receiving means for receiving the signal control condition from the main unit;
State transition instruction receiving means for receiving the state transition instruction from the main device;
A signal control condition for determining the success or failure of the received signal control condition with reference to the conversion state data, the signal display data, and the standing line data, and controlling the display of the corresponding traffic signal according to the determination result Monitoring reflection means;
Referring to the convertibility data , based on the received state transition instruction, if the corresponding switch is not convertible, wait until it can be converted, and the corresponding switch can be converted. and point state transition control means for the conversion state of the point lock unit is a state transition if there,
With
Communication between the field terminal and the field device is performed by the first communication more frequently than the second communication to ensure continuity of monitoring by the monitoring unit, and the field device by the main device An electronic interlocking system that realizes communication between the main device and the field terminal by the second communication that is less frequently performed than the first communication by eliminating the need for constant monitoring of the operation state. The main unit is
On-line information acquisition means for acquiring the latest on-line information indicating the presence or absence of a train on-line grasped by the on-line grasping means;
A path locking means for performing path locking for locking and unlocking each block section, based on the block section and the standing line information related to the progress of the train,
Further comprising
The route configuration control means determines whether or not the route configuration of the target train is possible using the locked state by the route locking means, and transmits the state transition instruction when it is determined to be possible.
The electronic interlocking system according to claim 1. The tipping machine locking means makes the determination with the conditions of the checking lock and / or display locking of the tipping machine as the given locking conditions .
The electronic interlocking system according to claim 1 or 2 .

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