JP4944430B2 - Test method and apparatus for train operation management system - Google Patents

Description

  The present invention provides a test method for evaluating software in a test system in an environment equivalent to a system that is operating online, when performing a test including verification and update of the system in a train operation management system, and It relates to the device.

  One of the features of the train operation management system is that it is always in operation. In other words, the system cannot be easily maintained or updated once it is operating. When performing maintenance or updating of a train operation management system that is operating online, the system is stopped / tested / updated / started / sound within about 1 to 2 hours when there is no train operation. Confirmation must be carried out.

  When updating a system, a general method is to evaluate the software using a test system independent of the online system and a simulator that simulates on-site equipment, and put it into the online system. However, since it is impossible for the simulator to completely simulate the system conditions of the on-site equipment in the online system, it is difficult to say that highly accurate software evaluation can be performed.

  Patent Document 1 discloses that data of a train operation management system that is operating online is stored in a test device, and this data is reproduced by a test system in a factory or the like to perform a test. As a result, the burden on the tester can be reduced, and the function / performance test of the operation management system for the actual train traveling can be performed. In addition, prompt response can be expected when a failure occurs.

  However, this technique has a drawback that there is no real-time property, and it is impossible to reproduce data related to operation arrangement.

  Therefore, there is a parallel monitor run method as a method for evaluating software that is not influenced by the accuracy of the simulator. This is a method of acquiring communication data from on-site equipment in an online system using a test system. As a means for fetching communication data from the online system into the test system, a device that acquires the communication data directly from the local area network, such as a network analyzer, is used. As a feature of the parallel monitor run method, there is a point that a software evaluation test can be performed all day without being restricted by the time between trains. Moreover, in a test system, communication data from an on-line field facility can be acquired directly. For this reason, control timing that cannot be reproduced by the simulator can be reproduced, and a highly accurate software evaluation test can be performed under a system condition equivalent to an online system.

JP 2000-21115 A (Overall)

  The main elements when simulating the operation status of the train operation management system during online operation are display information from the field equipment and operation arrangement information input by the commander. The display information from the field equipment could be used in the test system by the parallel monitor run method shown in the background art. On the other hand, when the operation arrangement information is acquired by the test system using the parallel monitor run method, it is necessary to modify (change the communication definition) a device in the train operation management system that is online. Renovation of online systems for software evaluation at the time of system update is very risky, and until now it has been abandoned to incorporate operation arrangement information into test systems. For this reason, in order to simulate the operation status of the train operation management system during online operation, it is necessary to input the operation arrangement information input in the online system at the same timing in the test system, which is not feasible.

  In the parallel monitor run method shown in the background art, in the method of importing communication data of an online system using a network analyzer into a test system, communication similar to that of the online system can be reproduced. That is, for communication using UDP / IP and receiving communication data at a plurality of nodes, communication similar to the online system can be reproduced by transmitting the communication data acquired from the online system to the test system. . With this parallel monitor run method, it is possible to evaluate software with high accuracy by taking communication data from a train operation management system operating online. On the other hand, it is extremely risky that communication data from the test system affects the online system, and that the nodes of the online system need to be refurbished to import the communication data into the test system. I must.

  In general, it is impossible for nodes having the same IP address to exist in the same system. When software is evaluated in a test system using the parallel monitor run method, the IP addresses of the nodes of the online system and the test system must be unique. For this reason, it is necessary to set the IP address of each node in the test system different from the IP address of each node in the online system. This change in the IP address is a change different from the system update to be evaluated, and does not become the target evaluation test.

  Furthermore, in UDP / IP, communication between only one-to-one nodes, or communication based on a connection path between one-to-one nodes in TCP / IP, between the network analyzer and the test system node. A one-to-one route cannot be established. For this reason, it is impossible to reproduce communication using a network analyzer. Therefore, modification is made to the application program that performs communication that operates in the online system, and it is operated on the node of the test system and the data acquired by the network analyzer is used. As a result, it is only possible to reproduce the communication of the online system by transmitting it with an application program operating on the node of the test system. In this method, the burden of creating a program also increases, and an application program that is different from the online system is operated, so that it is often not an accurate simulation of the online system.

  The object of the present invention is to capture the communication data of the online system into the test system without affecting the train operation management system that is operating online, and realize the test that simulates the environment of the online system in the test system It is to be.

  Another object of the present invention is to improve the accuracy of an evaluation test of software for updating a system.

  In a preferred embodiment of the present invention, a train operation management system and a test system are connected via a data transfer device, and communication data from the train operation management system is transmitted to the test system only in one direction by this data transfer device. Transmit and block communication data from the test system to the train operation management system.

  In a preferred embodiment of the present invention, the train operation management system and the test system are connected via a data transfer device, and communication data from the train operation management system is updated by this data transfer device. The software is transmitted to the internal test system only in one direction, the communication data from the test system to the train operation management system is cut off, and the test system operates the train operation based on the communication data from the train operation management system. Update the management system.

  According to a preferred embodiment of the present invention, communication of an online system can be reproduced by a test system without affecting the online system.

  Further, according to a preferred embodiment of the present invention, an environment equivalent to an online system can be simulated by a test system, and high-accuracy evaluation of software for updating the system can be realized.

  Other objects and features of the present invention will become apparent from the following description of embodiments.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is an overall system configuration diagram of a test apparatus for a train operation management system according to an embodiment of the present invention. The train operation management system 18 includes a command management system central device 20A, a control CRT 21A, an operation organization GD (graphic display) 22A, a control system LAN (local area network) 23A, an operation organization LAN 24A, and a field facility 25. On the other hand, the test system 19 basically has the same configuration as a simulator for simulating the train operation management system 18. In the figure, the test system 19 includes a command management system central device 20B, a control CRT 21B, an operation organization GD (graphic display) 22B, a control system LAN (local area network) 23B, and an operation organization LAN 24B. Software for updating the system is input to the command management system central device 20B, the control CRT 21B, and the operation arrangement GD22B in the test system 19.

  According to the present invention, data transfer devices 41 and 42 are connected between the online system of the train operation management system 18 and the test system 19. As will be described in detail later, the data transfer apparatuses 41 and 42 use Linux as an OS (operating system) in this embodiment and use the “promiscuous mode”. In Linux, in cooperation with IP (Internet Protocol), a one-way communication data acquisition function is realized. This communication data acquisition function is called “promiscuous mode” in Linux, and communication data flowing through the network can be acquired unilaterally by this function. That is, the data transfer devices 41 and 42 transmit communication data in only one direction from the train operation management system 18 to the test system 19. Communication data flowing through the network of the train operation management system 18 includes display information from the field facility 25, operation arrangement information from the operation arrangement GD22A by the commander, and the like. The test system 19 obtains these communication data, and in the environment that reflects the information of the online system in the command management system central device 20B, the control CRT 21B, and the operation control GD 22B, An evaluation test can be realized.

  By setting the above-mentioned “promiscuous mode”, data transmission from the test system 19 to the train operation management system 18 is blocked. Since communication data generated from the test system 19 is blocked by the data transfer devices 41 and 42, the communication data does not reach the train operation management system 18, and does not affect the system operating online. Moreover, by setting the “promiscuous mode”, the train operation management system 18 and the test system 19 are separated at the data link layer level. As a result, each node in the train operation management system 18 and the test system 19 can have the same IP address. That is, the train operation management system and the test system have the same network address system, and the software of the train operation management system 18 is directly input to the test system 19 so that the equivalent evaluation of the software can be performed. Yes.

  FIG. 2 is an example functional configuration diagram of the data transfer device in the data acquisition / accumulation in the test apparatus of the train operation management system according to the embodiment of the present invention. In the figure, nodes 3A and 3B are connected via a plurality of networks 1 and 2, and communication using TCP / IP and UDP / IP is performed between the nodes 3A and 3B. Under this environment, the data transfer device 4 (41 and 42 in FIG. 1) is connected to the same network as the network to which the nodes 3A and 3B are connected. The data transfer device 4 uses network interfaces 5A and 5B (FIGS. 2 and 3) implemented as hardware 9, and connects to the network. In order to operate the network interfaces 5A and 5B, driver software 6A and 6B provided from the developer of the network interfaces 5A and 5B is usually required as an extended function of the operating system 10. In the present embodiment, the network interfaces 5A and 5B and the driver software 6A and 6B can all be commercially available. As the operating system 10, Linux is used. The Linux and driver software 6A, 6B cooperate with an IP (Internet Protocol) 7 to realize a communication data acquisition function 8. The communication data acquisition function 8 is called “promiscuous mode” in Linux, and communication data flowing through the network interfaces 5A and 5B can be unilaterally acquired by this function. As long as it has this communication data acquisition function 8, the Example of this patent can be comprised. By providing the above-described configuration with the communication scenario 12, the communication data storage function 13, and the online system communication reproduction means 14 as the online concurrent communication program unit 11, the communication data can be acquired and stored in the online system.

  FIG. 3 is an example functional configuration diagram of a communication reproduction function between the data transfer device and the test system in the test device of the train operation management system according to the embodiment of the present invention. The data transfer device 4 is connected to the test system networks 15 and 16 from the online system. The data transfer device 4 is acquired by the communication data acquisition function 8 at the time of online connection, and the communication data storage function 13 stores the communication data of the online system based on the communication scenario 12. The online system communication reproduction unit 14 establishes a communication path with the node 17 connected to the test system networks 15 and 16 based on the communication scenario 12. The node 17 includes a test system man machine. The data transfer device 4 can communicate with the test system 19 using data acquired and stored from the online system.

  FIG. 4 is an example configuration diagram of a communication scenario set in the data transfer device in the test apparatus of the train operation management system according to the embodiment of the present invention. Before connecting the data transfer device 4 to the local area networks (LAN) 1 and 2 of the on-line system, the user of the data transfer device 4 must provide data necessary for communication related to the following work. Set. That is, as shown in the figure, a protocol 102, a transmission source IP address 103, a transmission source port number 104, a transmission destination IP address 105, a transmission destination port number 106, a header identifier 107, and a communication data length 110 are set. As a result, the communication data flowing through the local area networks (LAN) 1 and 2 of the corresponding online system can be identified by the data transfer device 4, and can be acquired and stored. Before connecting the data transfer apparatus 4 to the test system 19, the user sets the transfer destination IP address 107 and the transfer destination port number 108. As a result, communication data flowing to the destination IP address 105 and destination port 106 on the online system can be transmitted to the test system 19. In other words, the data can be transmitted to a program that uses the transfer destination port number 108 in the corresponding node instead of the node indicated by the transfer destination IP address 107 of the test system 19. Each scenario has a business No. Management is performed for each number indicated by 101. When sending the acquired data in the test system, By selecting a part or all of them by the user, the same communication data as the online system is reproduced.

  FIG. 5 is an example functional configuration diagram of the communication data storage function of the data transfer device in the train operation management system test device according to an embodiment of the present invention. Data acquired by the communication data acquisition function 8 is stored in the communication data storage area 200 by the communication data storage function 13. When storing, the acquisition order 201, the acquisition time 202, and the acquisition network type 203 are assigned to the acquisition data 204 and stored. The acquisition time is acquired from the machine time held by the data transfer device 4 and given. Based on the acquisition time 202, the communication interval can be obtained from the acquisition time difference for each acquisition data 204. When data acquired from the online system is transmitted to the test system, transmission is performed at the same interval as the online system. It becomes reproducible. In addition, by managing data received from a plurality of local area networks in one communication data storage area 200, it is possible to guarantee the communication order in the plurality of local area networks when sending the data to the test system. It becomes possible. In addition, if the user selects a local area network that reproduces communication, it is possible to reproduce only the communication of the selected local area network.

  FIG. 6 is a functional configuration diagram of an example of the online system communication reproduction means of the data transfer device in the train operation management system test device according to an embodiment of the present invention. The online system reproduction unit 14 is realized by the online system communication program 400. The online communication program 400 sends data acquired from the online system stored in the communication data storage area 200 to the test system. When sending, the work number is assigned by the user. If 101 is selected, the corresponding job No. Is selected from the communication data storage area 200 and transmitted, based on the communication scenario corresponding to. Business No. If 101 is not selected, all communication data acquired from the network of the online system is sent to the network of the test system at the acquired order and at intervals of the acquired communication data. At the time of transmission, after changing from the transmission partner of the online system to the partner indicated by the transfer destination IP address and transfer destination port number set in the communication scenario from the user, the communication data is transmitted to the transfer partner.

FIG. 7 is a process flow diagram of the online system communication reproduction program of the data transfer device in the train operation management system test device according to one embodiment of the present invention. The communication data acquired from the on-line system is extracted in the retrieval of stored data 401, and whether the scenario extracted in the communication scenario extraction 402 matches the communication data is compared in the comparison 403 of the communication scenario and the accumulated data. . If the conditions match, the protocol check 404 checks communication data using TCP / IP or UDP / IP. In the case of TCP / IP, a connection is established by a connection connection confirmation 405 and a connection establishment 406 by using a connection program in the node of the test system indicated by the transfer destination IP address and transfer destination port number of the communication scenario. In the accumulated data, there are cases where communication data corresponding to business is divided and stored, or retry processing is performed due to a communication error, and a plurality of the same communication data is stored. Therefore, the business message corresponding to the selected scenario, assembled in the message assembly 40 7. Check whether the assembly has succeeded in completion of assembly 40 8, if successful, transmits the message in the message transmission 40 9 to transfer destination.

  FIG. 8 is a detailed process flow diagram of the message assembly program of the data transfer device in the test apparatus of the train operation management system according to one embodiment of the present invention. In the message head search 407A, the connection connection request to the communication partner set in the scenario and the identifier stored in the communication data head are searched in the stored data, and the head of the communication data is searched. After the head search, in the stored data retrieval 407B, the stored data is searched with the identifier based on the message length corresponding to the communication message set in the scenario thereafter, and the corresponding data is retrieved. Whether or not the extracted data is a normal message is checked at 407C to determine whether the data is normal communication data or abnormal communication data. Whether or not an abnormal message needs to be transmitted, the communication data set by the user is judged at 407D, and if the abnormal content is reproduced, the abnormal message is also set as data to be transmitted. All the retrieved data is assembled into a communication message by data combination 407E. Whether or not the above check has been completed is checked by a communication data corresponding message extraction completion check 407F. The check is made based on whether communication data has been extracted and assembled for the message length set in the scenario.

  According to this embodiment, by establishing a connection between the online system and the test system via the data transfer device 4, the communication operation of the connection establishment method is equivalent to the train operation management system 18 without modification. It can be evaluated in the environment. For example, the train traveling result information transmitted by the one-to-one communication from the field facility 25 in the train operation management system 18 operating online to the command management system central device 20A is transmitted via the data transfer device 4 (41, 42). Thus, it can be transferred to the command management system central device 20B in the test system 19. Therefore, it is possible to realize the function confirmation regarding the train traveling performance information in the test system 19.

  Further, by providing the data transfer device 4 with a data buffering function, it is possible to evaluate the state of the field equipment with a time difference. That is, the operation environment reproduction that reproduces the operation environment of the data buffering means provided in the data transfer device and the train operation management system during online operation in the test system with a time difference based on the buffer data of the data buffering means. Means. As a result, for example, it is possible to perform data buffering for a special state in the field that is only several times a year, and to perform a test in another time zone. Conventionally, such a special condition test could only be performed in a simulated manner with a simulator. If the data buffering function is always operated, it is possible to easily realize a reproduction test at the time of abnormality, which has been difficult in the past.

  Furthermore, the data acquired by the data buffering function of the data transfer device 4 (41, 42) is transferred to a remote place, so that it can be evaluated by a remote test system. That is, the test system is constructed at a remote location of the train operation management system, and includes means for transmitting data acquired via the data transfer device to the remote test system. Thereby, it is not necessary to always have a test system on site, and a plurality of local environments can be evaluated with one test system in the factory. Moreover, based on the data acquired by the data buffering function of the data transfer device 4 (41, 42), it is applied to special conditions of on-site equipment, for example, trainer experience training for accidents such as train delays and equipment failures. You can also

  Furthermore, the data transfer device 4 obtains the output result of the train operation management system that is operating online and the output result of the test system, and compares the output results of the test system with the software for updating the system. Achieve soundness confirmation. In other words, the output result of the train operation management system that is operating online transferred to the test system via the data transfer device and the output result of the test system that simulates the train operation management system are obtained, and each output result is obtained. Comparing means for comparing is provided. When there is a difference in the output results between the data transfer apparatuses 4 (41, 42) or when there is a large difference in the output timing, a mechanism for outputting an alarm and notifying an abnormality is provided. Accordingly, it is possible to realize an efficient soundness check with higher accuracy than human output result comparison such as a conventional visual check.

  According to the above embodiment, a software evaluation test such as a system update of a train operation management system that has been subjected to many restrictions in terms of time and function can be performed anytime for 24 hours.

  Moreover, it becomes possible to evaluate all functions of the train operation management system in an environment equivalent to an online system, and significant improvement in quality and cost can be expected.

BRIEF DESCRIPTION OF THE DRAWINGS The whole system block diagram of the test apparatus of the train operation management system by one Example of this invention. The function block diagram of an example at the time of the data acquisition and accumulation | storage of the data transfer apparatus in the test apparatus of the train operation management system by one Example of this invention. The functional block diagram of an example of the communication reproduction function between the data transfer apparatus in the test apparatus of the train operation management system by one Example of this invention, and a test system. The block diagram of an example of the communication scenario set to the data transfer apparatus in the test apparatus of the train operation management system by one Example of this invention. The functional block diagram of an example of the communication data storage function of the data transfer apparatus in the test apparatus of the train operation management system by one Example of this invention. The functional block diagram of an example of the online system communication reproduction means of the data transfer apparatus in the test apparatus of the train operation management system by one Example of this invention. The processing flow figure of the online system communication reproduction program of the data transfer apparatus in the test apparatus of the train operation management system by one Example of this invention. The processing flowchart of the message assembly program of the data transfer apparatus in the test apparatus of the train operation management system by one Example of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1,2 ... Online system network, 3A, 3B ... Node, 4, 4A, 4B ... Data transfer device, 5A, 5B ... Network interface, 6A, 6B ... Driver software, 7 ... IP (Internet Protocol), 8 ... Communication Data acquisition function, 9 ... hardware, 10 ... OS (operating system), 11 ... online system concurrent communication reproduction program unit, 12 ... communication scenario, 13 ... communication data storage function, 14 ... online system communication reproduction means, 15, 16 ... test system network, 17 ... node (including test system man machine), 18 ... train operation management system, 19 ... test system, 20A, 20B ... command management system central unit, 21A, 21B ... control CRT, 22A, 22B ... Operation arrangement GD, 23A, 23B ... Control system LA , 24A, 24B ... replanning LAN, 25 ... site facilities, 200 ... communication data storage area, 400 ... line system communication reproduction program.

Claims (12)

Online operation comprising a train operation management system comprising a plurality of nodes and a test system connected to the train operation management system and comprising a plurality of test nodes corresponding to each of the plurality of nodes In the test method of the train operation management system in which data from the train operation management system is taken into the test system and tested.
The train operation management system includes an operation adjustment LAN that connects between the plurality of nodes and flows operation adjustment information, and a control system LAN that connects between the plurality of nodes and flows display information from field facilities,
The test system connects, as a simulator simulating the train operation management system, a plurality of the test system nodes and a test system operation management LAN through which operation control information flows and a plurality of the test system nodes. A control LAN for the test system through which display information flows is provided.
The train operation management system operation control LAN and the test system operation control LAN are connected via a first data transfer device, and the train operation management system control system LAN and the test system control system LAN. DOO was connected via the second data transfer device, this by these first and second data transfer device, the testing of the communication data transmitted and received between the plurality of nodes in the train operation management system Transfer to the system only in one direction, cut off the communication data from the test system to the train operation management system,
The first and second data transfer devices are:
Captures and stores communication data transmitted and received in the train operation management system that is operating online, and the source or destination address set in the captured communication data, and the test system transfer destination of the communication data Refer to the communication scenario determined for each test service, and the communication data is sent to the test system transfer destination address set in the communication scenario corresponding to the captured communication data. A test method of a train operation management system characterized by transferring. In claim 1,
The test system includes software for system update,
The first and second data transfer devices use software for updating the system of the test system and perform software evaluation tests based on communication data from the train operation management system. Test equipment for train operation management system.   3. The test method for a train operation management system according to claim 1, wherein the train operation management system and the test system have the same network address system. 4. The test system according to claim 1, wherein the first and second data transfer devices have a data buffering function, and the operation environment of the train operation management system that is operating online is determined with a time difference. A test method for a train operation management system, which is reproduced in a system and tests the train operation management system. In any one of Claims 1-4, based on the data acquired via the said 1st and 2nd data transfer apparatus, the operating environment of the said train operation management system in operation is constructed in a remote place. A test method for a train operation management system, which is transmitted to a test system and reproduced to test the train operation management system. In any one of Claims 1-5, the test which simulates the output result of the said train operation management system in the online operation obtained via the said 1st and 2nd data transfer apparatus, and the said train operation management system A test method for a train operation management system, comprising: obtaining an output result of a train system; and comparing the respective output results to test the train operation management system. Online operation comprising a train operation management system comprising a plurality of nodes and a test system connected to the train operation management system and comprising a plurality of test nodes corresponding to each of the plurality of nodes In the test apparatus of the train operation management system for performing the test by taking the data from the train operation management system into the test system,
The train operation management system includes an operation adjustment LAN that connects between the plurality of nodes and flows operation adjustment information, and a control system LAN that connects between the plurality of nodes and flows display information from field facilities,
The test system connects, as a simulator simulating the train operation management system, a plurality of the test system nodes and a test system operation management LAN through which operation control information flows and a plurality of the test system nodes. A control LAN for the test system through which display information flows is provided.
A first data transfer device that connects the operation management LAN of the train operation management system and the operation management LAN for the test system, a control system LAN of the train operation management system, and a control system LAN for the test system and a second data transfer device connected, by these first and second data transfer device, the communication data transmitted and received between the plurality of nodes in the train operation management system to the testing system Transfer only in one direction, block communication data from the test system to the train operation management system,
The first and second data transfer devices are:
An accumulator that captures and accumulates communication data transmitted and received in the train operation management system operating online;
A communication scenario in which a correspondence relationship between a transmission source address or a transmission destination address set in the captured communication data and a test system transfer destination address of the communication data is determined for each test operation,
A test apparatus for a train operation management system, wherein the communication data is transferred to a transfer destination address of a test system set in the communication scenario corresponding to the captured communication data. In claim 7,
The test system includes software for system update,
The first and second data transfer devices include evaluation test means for performing software evaluation tests based on communication data from the train operation management system using the system update software of the test system. A train operation management system testing device characterized by that.   9. The train operation management system test apparatus according to claim 7, wherein the train operation management system and the test system have the same network address system. 10. The data buffering means provided in the first and second data transfer devices according to claim 7, and the operating environment of the train operation management system operating online is defined as a buffer of the data buffering means. A test apparatus for a train operation management system, comprising operating environment reproduction means for reproducing in the test system with a time difference based on data. The test system according to any one of claims 7 to 10, wherein the test system is constructed at a remote location of the train operation management system, and the data acquired via the first and second data transfer devices is used as the test at the remote location. A train operation management system testing apparatus comprising means for transmitting to a train system. The output result of the train operation management system during online operation transferred to the test system via the first and second data transfer devices, and the train operation management system according to any one of claims 7 to 11 A test apparatus for a train operation management system, comprising: a comparison unit that obtains an output result of the test system that simulates and compares the output results.

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