JP6358972B2 - Data equivalent system for train operation, data equivalent method using the system - Google Patents

Description

The present invention relates data equivalent system for train operation to equalize the data between a plurality of computer for managing the operation of the train, the data equivalent way method using the system.

  In a system that manages train operation, for example, when the central monitoring device diagram that implements train monitoring control is changed, the contents are changed and reflected on display devices installed at each station. It is necessary to perform data equivalence of the selected computers. As an example of such data equivalence, a plurality of servers connected to a communication network and having a media database in which media data is stored, and connected to this server, the media data is updated and stored in the media database. And at least one server creates and stores a copy of the media database when it is updated, and sends the copy to another server to store the media database, etc. A technology of a media distribution system having an equalization means for making a value is disclosed (for example, see Patent Document 1).

JP 2001-236255 A

However, what is disclosed in Patent Document 1 is whether or not the equalization server automatically updates the media database in the servers in the world at an arbitrary rate, for example, once every 3 hours. If it has been updated, a copy of the updated sentence is created and stored, and the copied data is sent to each server and output-only server in each region. It is a system that updates and equalizes the contents with the contents of the server for equalization, and it is necessary to equivalence the data to dozens of devices within a few seconds like a train operation management system. In the technique disclosed in Patent Document 1, there is a problem in that it is delayed from timely equivalence, and safe driving of the train cannot be ensured.
In addition, Patent Document 1 discloses that the equalization function of the equalization server can be given to any one of the servers or a plurality of servers. In this case, it is necessary to perform equivalence completion confirmation and retransmission processing to the data equivalence destination, which increases the load on the data equivalence target device.
In the train operation management system example, the central monitoring device performs the monitoring control of the train and at the same time performs the data equivalence. However, the monitoring control of the train is executed in a short time of about 1 to 2 seconds. There is a problem that when the load is increased, the normal monitoring control process is hindered.

The present invention has been made to solve the above-described problems. A data equivalent system for train operation, which can reduce the load of data equivalence by reducing the number of data equivalence reflection checks, and a system thereof. and to provide a data equivalent way method using.

The data equivalent system for train operation according to the first invention is:
A train provided with an equivalent source device, a plurality of proxy equivalent source devices connected to the equivalent source device via a network, and a plurality of equivalent destination devices connected via a network for each proxy equivalent source device A data equivalent system for operation, wherein one of the plurality of devices is set as a main proxy equivalent device, and the equivalent device relates to train operation of the own device. The data of the database is changed, and the changed data is transmitted as a data equivalent signal to the proxy equivalent source device. The proxy equivalent source device performs data equivalence of the database of the own device based on the data equivalent signal. And sending the data equivalent signal to the equivalent destination device, and the equivalent destination device performs data equivalence of its own database based on the data equivalent signal. In addition, the management information that transmits the data equivalent implementation status to the proxy equivalent source device and the data equivalent implementation status of the equivalent destination device connected to the own device is collectively created by the proxy equivalent source device. , by the main proxy equivalent source device, after being once aggregated, it is shall be sent to the equivalent source device.
The second invention is a data equivalent method using the data equivalent system for train operation of the first invention.

According to the data equivalent system for train operation according to the first invention and the data equivalent method according to the second invention, the change of the data related to train operation transmitted by the equivalent device is made via a plurality of proxy equivalent devices. Since data equivalence of multiple equivalent destination devices connected to each of these proxy equivalent source devices is performed, reflection confirmation and re-reflection for the equivalent destination devices are aggregated by the proxy equivalent source device and sent to the equivalent source device. In addition to reducing the number of reflection confirmations and re-reflections to the equivalent destination device, which is the load of the equivalent source device, it is possible to change data quickly and to reduce adverse effects on the train operation diagram.

1 is a block diagram showing a data equivalent system according to Embodiment 1. FIG. 2 is a configuration diagram of each device according to Embodiment 1. FIG. FIG. 3 is an operation flow diagram of the data equivalent system according to the first embodiment. 3 is a diagram illustrating a management table according to the first embodiment. FIG. 6 is a block diagram showing a data equivalent system according to Embodiment 2. FIG. FIG. 6 is a configuration diagram of a main proxy equivalent element device according to a second embodiment. FIG. 10 illustrates a management table according to the second embodiment. FIG. 10 is a block diagram illustrating a data equivalent system according to a third embodiment. FIG. 10 is a configuration diagram of a main proxy equivalent element device according to a third embodiment. FIG. 10 illustrates a management table according to the third embodiment. FIG. 10 is a configuration diagram of a main proxy equivalent element device according to a fourth embodiment. FIG. 10 is a configuration diagram of an equivalent element device according to a fifth embodiment. FIG. 10 is a configuration diagram of a main proxy equivalent element device according to a fifth embodiment. FIG. 10 is a configuration diagram of an equivalent element device according to a sixth embodiment. FIG. 10 is a configuration diagram of a main proxy equivalent element device according to a sixth embodiment.

Embodiment 1 FIG.
Hereinafter, a train equivalent data equivalent system (hereinafter abbreviated as a data equivalent system) 500 according to Embodiment 1 of the present invention will be described with reference to the block diagram of FIG. As shown in FIG. 1, the data equivalent system 500 includes a proxy equivalent source device group 200 including an equivalent source device 100 and a plurality of proxy equivalent source devices 201 to 203, and a plurality of equivalent destination devices 401 to 406. Equivalent destination device group 400, which are connected by networks L _{1 to} L ₃ and LA _{1 to} LA ₆ , respectively. A mode between the devices in data equivalence by the data equivalence system 500 will be described. For example, the equivalent device 100 is provided in a central monitoring device of a train operation monitoring control center installed in a large city, and the train operation diagram change data made by the equivalent device 100 is used as a data equivalent signal along the railway line. It has a function of instructing data equivalence to another equivalent device group 400 (server) installed at each station.
The plurality of proxy equivalent source devices 201 to 203 constituting the proxy equivalent source device group 200 update the data in the database of the own device according to the data equivalence command of the equivalent source device 100 and also configure the equivalent destination device group 400. Data equivalence is transmitted to the equivalent destination devices 401 to 406. With this transmission and command, the equivalent destination devices 401 to 406 belonging to the proxy equivalent source devices 201 to 203 update their own data.
In FIG. 1, the proxy equivalent source device group 200 is shown as three proxy equivalent source devices 201 to 203, and the equivalent destination device group 400 is shown as an example of six equivalent destination devices 401 to 406. It is not limited. An example in which two equivalent destination devices 401 to 406 are connected to each proxy equivalent source device 201 to 203 is shown. The proxy equivalent source devices 201 to 203 have the same configuration, the equivalent destination devices 401 to 406 also have the same configuration, and the equivalent source device 100 and the proxy equivalent source devices 201 to 202 are connected to the networks L _{1 to} L _3. The equivalent destination devices 401 and 402 are connected to the proxy equivalent source device 201 via the networks LA ₁ and LA ₂ , and the equivalent destination devices 403 and 404 are also connected to the proxy equivalent source devices 202 and 203, respectively, as the network LA _3. , LA ₄ and networks LA ₅ , LA ₆ .

  Next, based on FIGS. 2A to 2C, the equivalent source device 100, the proxy equivalent source device 201 representing the proxy equivalent source device group 200, and the equivalent destination device 401 representing the equivalent destination device group 400, respectively. The structure with which will be described. A communication unit 91 and a database (hereinafter abbreviated as DB) 92 to 92b are provided as a common configuration of the above-described devices. The communication unit 91 transmits and receives data to other devices. DBs 92 to 92b represent data holding areas in the computer, and are realized by various hardware such as HDD, SSD, and memory.

  The configuration, operation, and function of the equivalent device 100 will be described with reference to FIG. When a train operation schedule change or the like occurs, a technician operates the data change unit 11 to change the data in the DB 92. The data equivalent unit 12 transmits the data changed by the data change unit 11 to the proxy equivalent source device 201 as a data equivalent signal and issues a data equivalent command. The equivalent status management unit 13 manages the data equivalence status of the proxy equivalent source device group 200 including the proxy equivalent source device 201.

  Next, the proxy equivalent element device 201 will be described with reference to FIG. The equivalent data transmission / reception unit 21 receives a data equivalent signal transmitted from the equivalent source device 100 and transmits it to the equivalent destination device 401 connected to the own device. The data proxy equivalent unit 22 transmits the data equivalent signal to the equivalent destination device 401. The equivalent destination equivalent status management unit 23 manages the data equivalent status that is management information of the equivalent destination device 401. The equivalence management unit 24 performs data equivalence on its own device, checks whether the data equivalence is reflected, and performs equivalence if it is not reflected. The data change unit 25 changes the data in the DB 92a based on the data equivalence of the equivalence management unit 24.

  Next, the equivalent destination device 401 will be described with reference to FIG. The equivalent data receiving unit 41 receives a data equivalent signal transmitted from the proxy equivalent source device 201. The equivalence management unit 42 checks whether or not the data equivalence has been reflected by its own device based on the data equivalence signal, and performs re-reflection if it has not been reflected within a predetermined time. The data change unit 43 changes the data in the DB 92b based on the data equivalence of the equivalence management unit 42.

Next, in the data equivalent system 500 according to the first embodiment, the data equivalent operation to the equivalent destination devices 401 and 402 by the command of the equivalent source device 100 will be described based on the flowchart shown in FIG.
In the following description, the data equivalence command to the equivalent destination devices 401 to 406 transmitted by the equivalent source device 100 described in FIG. 1 is sent via the proxy equivalent source device 201 via the network L ₁ to the network LA. ₁ , the operation to reach the equivalent destination apparatuses 401 and 402 via LA ₂ will be representatively described. This operation is performed via the proxy equivalent source apparatus 202 via the other network L ₂ and the network LA _3. , Operations reaching the equivalent destination devices 403 and 404 via LA ₄ , and operations reaching the equivalent destination devices 405 and 406 via the network LA ₅ and LA ₆ via the proxy equivalent source device 203 via the network L ₃ The same applies to.

In ST1 (step 1) of FIG. 3, the data change is output from the data change unit 11 of the equivalent source device 100 provided in the central monitoring device by the operation of the technician.
In ST2, the data equivalent unit 12 transmits the contents of the data change to the proxy equivalent source device 201 as a data equivalent signal.
In ST3, the equivalence management unit 24 provided in the proxy equivalent source device 201 performs equivalence of the data of its own device, and the data proxy equivalent unit 22 adds the data equivalent to the equivalent destination devices 401 and 402 constituting the equivalent destination device group 400. While transmitting a signal, the equivalent destination equivalent status management unit 23 starts managing the equivalent status of the data of the plurality of equivalent destination devices 401 and 402.
Note that the equivalence of the data of the own device is confirmed by the equivalence management unit 24 and re-reflected if it is not performed within a predetermined time, and the result is changed in the data of the DB 92a.
In ST4, the equivalence management unit 42 of the equivalence destination devices 401 and 402 performs the equivalence of the data of the own device, confirms that the equivalence of the data has been made, and re-reflects if it is not done within a predetermined time. As a result, the data in the database 92b is changed, and the equivalence completion, which is the data equivalence implementation status, is transmitted to the equivalent destination equivalence status management unit 23 of the proxy equivalence source device 201.
In ST5, the equivalent destination equivalent status management unit 23 aggregates as management information that a plurality of equivalent destination devices 401 and 402 including the own device have been equivalently transmitted, and transmits the management information to the equivalent status management unit 13 of the equivalent source device 100.
In ST6, the equivalence status management unit 13 confirms that the equivalence of the data of the plurality of equivalent destination devices 401 and 402 has been completed, and the proxy equivalent source device group 200 and the equivalent destination device group 400 shown in FIG. Completion of data equivalence of all devices, that is, data equivalence status is confirmed.

  An example of the equivalent status management table (equivalent element) in FIG. 4A and the equivalent status management table (proxy equivalent element) in FIG. 4B is shown in the equivalent status management unit 13 of the equivalent source device 100. As shown in FIG. 4A and FIG. 4B, the equivalent implementation status of the proxy equivalent source devices 201 and 202 and the equivalent destination devices 401 and 402 is information indicating whether data equivalence has been completed or not yet completed. In some cases, information indicating that all devices are equivalently completed may be displayed.

As described above, in the first embodiment, the equivalent element device 100 is provided with a plurality of proxy equivalent element devices 201 to 203 via the networks L _{1 to} L _3, and a plurality of proxy equivalent element devices 201 to 203 are provided. Equivalent destination devices 401 to 406 to be connected are provided, and a data change command transmitted from the equivalent source device 100 is transmitted to the equivalent destination devices 401 to 406 via the proxy equivalent source devices 201 to 203, and a plurality of equivalent destination devices 401 to 406 are transmitted. Since the data equivalence status in the equivalent destination devices, for example, 401 and 402, is collected as management information by the proxy equivalent source device 201 and the result is reported to the equivalent source device 100, the load on the equivalent source device 100 should be reduced. The data can be changed quickly, for example, the train schedule can be changed smoothly after a trouble occurs. Such as the display change in the display device provided in each station, changes in various data relating to train operation is faster, it is possible to reduce adverse effects. Furthermore, since the equivalent source device 100 reflects or re-reflects data changes on the plurality of equivalent destination devices 401 and 402 at the proxy equivalent source device 201, the load on the equivalent source device 100 is reduced.

Embodiment 2. FIG.
Next, a data equivalent system 500 according to Embodiment 2 will be described based on the block diagram shown in FIG. In the second embodiment, one device in the plurality of proxy equivalent device groups 200 of the first embodiment is used as a main proxy equivalent device, and in FIG. It has a device 201A, further the connection with the network LN ₁ mainly proxy equivalent source device 201A and the proxy equivalent source device 202, also a proxy equivalent source device 202 and the proxy equivalent source device 203 are connected by a network LN _2. Further, as shown in FIG. 6, the main proxy equivalent device 201A is provided by adding a proxy equivalent source transmission / reception unit 26 and a proxy equivalent source equivalent status management unit 27 to the proxy equivalent source device 201 of the first embodiment. Other than the above, the second embodiment is the same as the first embodiment.
The proxy equivalent element transmitting / receiving unit 26 has a function of exchanging signals with the other proxy equivalent element devices 202 and 203, and the equivalent of the above-described data in the proxy equivalent element devices 202 and 203 via the networks LN ₁ and LN _2. The situation can be managed by the main proxy equivalent device 201A. The equivalent destination management table of FIG. 7A and the equivalent status management table (equivalent source) of FIG. 7B are shown in the equivalent destination equivalent status management unit 13 of the equivalent source device 100.

In the data equivalent operation of the data equivalent system 500 in the second embodiment, ST4 and ST5 in FIG. 3 of the first embodiment are replaced by the following ST4 _A and ST5 _A , and the replaced contents are as follows. Describe.
In ST4 _A , the equivalence management unit 42 of the equivalence destination devices 401 and 402 performs the equivalence of the data of the own device, confirms that the equivalence of the data is made, and re-reflects if it is not done within a predetermined time, The result is changed in the database 92b, and the data equivalent status including the result is transmitted to the equivalent destination equivalent status management unit 23 of the main proxy equivalent source device 201A. The other proxy equivalent source devices 202 and 203 also report the completion of equivalence to the main proxy equivalent source device 201A via the networks LN ₁ and LN ₂ after the above data equalization is completed.
In ST5 _A, main surrogate equivalent source device 201A surrogate equivalent based on equivalent status management unit 27, the information aggregate data equivalent status of the plurality of proxy equivalent source device 202, 203 including the self apparatus, the equivalent of the equivalent source apparatus 100 A message is sent to the situation management unit 13.

  The equivalent destination management table in FIG. 7A and the equivalent status management table (equivalent element) in FIG. 7B are shown in the equivalent status management unit 13 provided in the equivalent source device 100.

  As described above, in the second embodiment, one main proxy equivalent element device 201A is set in the proxy equivalent element device group 200, and the main proxy equivalent element device 201A includes a plurality of proxy equivalent elements including its own device. Since the information that summarizes the data equivalence status of the devices 202 and 203 is transmitted to the equivalent source device 100, the number of confirmations as to whether or not the data change by the equivalent source device 100 is reflected in the equivalent destination device group 400 is further reduced. Thus, the effect of reducing the load on the equivalent device 100 can be obtained.

Embodiment 3 FIG.
Next, a data equivalent system 500 according to Embodiment 3 will be described with reference to the block diagram of FIG. The third embodiment replaces the main proxy equivalent element device 201A of FIG. 5 of the second embodiment described above with a main proxy equivalent element device 201B, and also substitutes the main proxy equivalent element device 201B as shown in FIG. An equivalent element state management unit 28 and a proxy mode transition unit 29 are additionally provided. This data equivalent system 500 as shown in FIG. 8, the proxy equivalent source apparatus 202 and 203 including the main proxy equivalent source device 201B proxy equivalent source group 250 is connected via the equivalent source device 100 and the network _{L 10} In addition, the proxy equivalent source device group 200 is configured to be connected to all the equivalent destination devices 401 to 406 of the equivalent destination device group 400 by the network LA ₁₀ . With this configuration, the proxy equivalent source state management unit 28 provided in the main proxy equivalent source device 201B holds the proxy equivalent source state management table shown in FIG. The operation status of the equivalent source devices 202 and 203 is periodically checked. This state is shown in the equivalent status management unit 13 of the equivalent source device 100 as the equivalent status management table of FIG.
Here, for example, when the main proxy equivalent element device 201B is not operating for some reason, the proxy mode transition unit 29 performs the proxy according to the main proxy equivalent element priority order as shown in the proxy equivalent element state management table of FIG. A transition is made to the equivalent source device 202 to become the main proxy equivalent source device. In the operation of the third embodiment, the proxy mode transition unit 29 operates independently in addition to the second embodiment described above. In this way, even when the main proxy equivalent element device 201B does not operate, since the transition is made to another device, for example, the proxy equivalent element device 202, according to the priority order, the data equivalence system 500 as a whole improves the efficiency of data equivalence and reflection confirmation, The load on the equivalent device 100 is reduced.

Embodiment 4 FIG.
In the fourth embodiment, the main proxy equivalent element device 201C of the third embodiment is additionally provided with a proxy equivalent source load state measuring unit 30 as shown in FIG. It is. The proxy equivalent source load state measurement unit 30 periodically measures the load status such as CPU usage rate and reflection time of the other proxy equivalent source devices 202 and 203, and the data equivalent amount as a load exceeds a predetermined value. When the load state is determined, for example, the equivalent destination that is the load of the overloaded proxy equivalent device 202 is transmitted to the equivalent status management unit 13 of the equivalent source device 100 so as to be changed to the charge of the other proxy equivalent device 203 To do. This produces the same effect as in the third embodiment.
Since the load status is transmitted to the equivalent source device 100, the load status is displayed on the load management unit (not shown) in the equivalent source device 100, and the equivalent status can be obtained without waiting for a signal from the proxy equivalent source load state measuring unit 30. The assigned device may be changed according to a command from the original device 100.

Embodiment 5. FIG.
Next, a fifth embodiment will be described with reference to FIGS. The equivalent source device 100A shown in FIG. 12 replaced with the equivalent source device 100 shown in the fourth embodiment described above in the fifth embodiment and the main proxy equivalent source device shown in FIG. 13 replaced with the main proxy equivalent source device 201C. 201D is provided, and other configuration requirements are the same as those in the fourth embodiment. As shown in FIG. 12, the equivalent source device 100A is provided with a priority equivalent destination command unit. Further, as shown in FIG. 13, the primary proxy equivalent source device 201 </ b> D is provided with a priority equivalent destination transmission unit 31. In this fifth embodiment, for example, when an accident that hinders train operation occurs at Sakai Station, it is necessary to transmit the corrected diagram after recovery from this accident to the equivalent destination device group 400 of each station as data to be equivalent. When this occurs, the data equivalency is effective when giving priority to the station where the accident occurred and propagating to adjacent stations one after another. In other words, the priority equivalent destination transmission unit 31 of the main proxy equivalent source device 201D determines that the equivalent destination device 401A receives the command based on, for example, a command that gives priority to the equivalent destination device 401 transmitted by the priority equivalent destination command unit 14 of the equivalent source device 100A. By transmitting to the device 401 and reporting to the equivalence source device 100A when the equivalence destination device 401 reflects the data equivalence, and confirming the reflection, it is possible for the urgent case or the minimum necessary equivalent destination device. As a result, the confirmation of the time until completion of equivalence can be shortened.

Embodiment 6 FIG.
The sixth embodiment is an equivalent source device 100B shown in FIG. 14 in which a priority equivalent data command unit 15 is additionally provided in place of the equivalent source device 100A of the fifth embodiment described above, and the main proxy equivalent source device. Instead of 201D, the main proxy equivalent device 201E shown in FIG. In the sixth embodiment, when the necessity for data equivalence newly arises, or when a plurality of data equivalences received before the necessity arises, the data equivalence has a high priority. The priority equivalent data command unit 15 of the equivalent source device 100B sets the equivalent priority and transmits the data. The priority equivalent data transmission unit 32 of the main proxy equivalent source device 201E that receives this transmits the equivalent data to the equivalent destination device group 400 so as to perform data equivalency in the order of priority based on the command, so that the equivalent of the data equivalent system 500 as a whole is transmitted. Work efficiency can be improved.

  It should be noted that within the scope of the present invention, the embodiments can be freely combined, or the embodiments can be appropriately modified or omitted.

14 priority equivalent destination command section, 15 priority equivalent data command section,
30 proxy equivalent source load state measuring unit, 100, 100A, 100B equivalent source device,
201-203, 201A-201E main substitute equivalent device,
401-406 equivalent destination device, 92, 92a, 92b database,
_L1~L3, LA 1 ~LA ₆ network, 500 data equivalent system.

Claims (7)

A train provided with an equivalent source device, a plurality of proxy equivalent source devices connected to the equivalent source device via a network, and a plurality of equivalent destination devices connected via a network for each proxy equivalent source device A data equivalent system for operation, wherein one of the plurality of devices is set as a main proxy equivalent device, and the equivalent device relates to train operation of the own device. The data of the database is changed, and the changed data is transmitted as a data equivalent signal to the proxy equivalent source device. The proxy equivalent source device performs data equivalence of the database of the own device based on the data equivalent signal. And sending the data equivalent signal to the equivalent destination device, and the equivalent destination device performs data equivalence of its own database based on the data equivalent signal. With its the implementation of data equivalent to sending to the proxy equivalent source device, by the proxy equivalent source apparatus, which is aggregation create the implementation of the data equivalent of connected said equivalent target device to the own device management A data equivalent system for train operation in which information is aggregated by the main proxy equivalent device and then transmitted to the equivalent device . A data equivalent method using the data equivalent system for train operation according to claim 1. The data equivalent system for train operation according to claim 1, wherein when the data equivalence by the equivalent destination device is not performed within a predetermined time, re-reflection is performed by the equivalence management unit of the equivalent destination device. When the primary proxy equivalent source device becomes inoperable, the other alternatives according to the primary proxy equivalent source priority shown in the proxy equivalent source state management table held by the proxy equivalent source state management unit of the primary proxy equivalent source device The data equivalent system for train operation according to claim 1 or 3, wherein a transition is made so that one of the proxy equivalent device becomes a main proxy equivalent device. When a proxy equivalent source device in an overload state is determined from the measurement result of the proxy equivalent source load state measurement unit provided in the main proxy equivalent source device, the main proxy equivalent source device is connected to the equivalent source device. 5. The data equivalent system for train operation according to claim 1, wherein the data equivalent signal is output so as to be changed to another proxy equivalent element device. 6. The equivalent source device is provided with a priority equivalent destination command unit, and when there is a need to perform data equivalence based on priority with respect to the equivalent destination device, the main proxy equivalent source device 6. The method according to claim 1, wherein the equivalent equivalent device is instructed to preferentially perform data equivalence based on a command transmitted by the previous command unit. Data equivalent system for train operation as described. The main proxy equivalent source device that receives the priority equivalent data command signal transmitted by the priority equivalent data command unit provided in the equivalent source device performs data equivalence in the priority order based on the signal to the equivalent destination device. The data equivalent system for train operation according to any one of claims 1, 3, 4, 5, and 6, which transmits a command to perform.

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