JP6210653B2 - In-composition network system, intra-organization network construction method, and management apparatus - Google Patents

Description

  The present invention relates to communication between network devices mounted on railway vehicles and the like, and more particularly to information management of network devices mounted on each vehicle and an IP address setting method.

  In recent years, surveillance systems consisting of surveillance cameras have been operated inside and outside vehicles in public transportation such as trains, buses and taxis, which are represented by trains. In order to prevent this, it is becoming common to monitor and record (store) the situation inside the vehicle using video. With the introduction of a monitoring system in a railway vehicle, real-time monitoring of the train by a monitoring camera is possible, and further, the state in the train can be recorded and accumulated as a video.

  For example, a system has been proposed in which information such as video is communicated between vehicles via a network switch mounted on each vehicle, and the congestion rate of each vehicle is determined based on video from a surveillance camera mounted on each vehicle. (See Patent Document 1).

JP 2013-025523 A

  In the system described above, devices installed in each vehicle realize communication between vehicles via each network switch, but the IP address of each network device needs to be set and managed. Railroad vehicles are organized by connecting a plurality of vehicles. However, since vehicles are often connected, separated, or replaced, in order to communicate with a new organization, the IP of the network equipment of each vehicle is used. It is necessary to set and manage addresses again to build a network within the organization. And, for smooth railway operation, it is required to build a network within the organization quickly.

  The present invention has been made in view of such a conventional situation, and an object of the present invention is to provide a system that realizes quick construction of a network within a composition.

In order to achieve the above object, the system according to the present invention has the following configuration as one configuration example.
A network system within a composition according to the present invention is a network system within a composition composed of one or more vehicles, and corresponds to a network device, a device ID that is a number corresponding to the network device, and a vehicle type. Storage means for storing a vehicle type that is a number to be assigned and device configuration information associated with a network device mounted for each type of vehicle, and a management unit that manages the network device. The means acquires a vehicle ID including the vehicle type and the car number, reads the device ID and device configuration information from the storage means, and determines an IP address of the network device based on the vehicle ID and the device ID. In addition, based on the device configuration information and the vehicle type, the configuration of the vehicle of the entire formation and the network device of each vehicle An intra-composition network is constructed by associating the configuration with the IP address of the network device.

  Further, in the intra-composition network system according to the present invention, the IP address of the network device is determined by binarizing the vehicle ID and the device ID and arranging them at predetermined bit positions.

  In the intra-composition network system according to the present invention, the vehicle type is divided into at least two types: a vehicle with a driver's seat and a vehicle without a driver's seat, and the formation is a vehicle with a driver's seat and a vehicle without a driver's seat. Alternatively, a plurality of vehicles are connected by a vehicle having a driver's seat and a vehicle having a driver's seat.

  In the in-composition network system according to the present invention, the vehicle with the driver's seat includes the network device, the storage unit, and the management unit, and the vehicle without the driver's seat includes the network device.

  In the in-composition network system according to the present invention, when the management means obtains a vehicle connection or separation flag together with the vehicle ID, and confirms the connection or separation flag, the network device IP address is obtained. The vehicle ID is deleted and the vehicle ID is acquired again to construct the intra-composition network.

  Further, the in-composition network construction method according to the present invention is composed of one or more vehicles, and in a composition in-composition network system in which a network device and a management unit for managing the network device are mounted, the management unit includes: A vehicle ID including a vehicle type and a car number that is a number corresponding to the type of vehicle is acquired, and an IP address of the network device is determined based on the vehicle ID and a device ID that is a number corresponding to the network device. In addition, based on the device configuration information associated with the vehicle type and the network device mounted for each vehicle type and the vehicle type, the configuration of the vehicle for the entire formation and the configuration of the network device for each vehicle An intra-composition network is constructed by associating with the IP address of the network device.

  In the intra-composition network construction method according to the present invention, the IP address of the network device is determined by binarizing the vehicle ID and the device ID and placing them at predetermined bit positions.

  In the intra-composition network construction method according to the present invention, the vehicle type is divided into at least two types: a vehicle with a driver's seat and a vehicle without a driver's seat, and the train has a vehicle with a driver's seat and no driver's seat. A plurality of vehicles are connected by a vehicle or a vehicle with a driver's seat and a vehicle with a driver's seat.

  In the intra-composition network construction method according to the present invention, the vehicle with the driver's seat includes the network device and the management means, and the vehicle without the driver's seat includes the network device.

  Further, in the intra-composition network construction method according to the present invention, when the management unit obtains a vehicle connection or separation flag together with the vehicle ID, and confirms the connection or separation flag, the IP address of the network device Is deleted, the vehicle ID is acquired again, and the in-composition network is constructed.

  Further, the management device according to the present invention is a management device for managing the network device, which is installed in a network system within a composition composed of one or more vehicles and in which the network device is mounted on each vehicle, Read from the storage means a device ID that is a number corresponding to the network device, a vehicle type that is a number corresponding to the type of vehicle, and device configuration information associated with the network device mounted for each type of vehicle, The vehicle ID including the vehicle type and the car number is acquired, the IP address of the network device is determined based on the vehicle ID and the device ID, and the entire organization is determined based on the vehicle type and the device configuration information. By associating the configuration of the vehicle, the configuration of the network device for each vehicle, and the IP address of the network device, Build a Nanai network.

  The management apparatus according to the present invention is characterized in that the IP address of the network device is determined by binarizing the vehicle ID and the device ID and placing each at a predetermined bit position.

  In the management device according to the present invention, the vehicle type is divided into at least two types of a vehicle having a driver's seat and a vehicle having no driver's seat, and the formation includes a vehicle having a driver's seat and a vehicle having no driver's seat, or A plurality of vehicles are connected by a vehicle having a driver's seat and a vehicle having a driver's seat.

  In the management device according to the present invention, the vehicle with the driver's seat includes the network device and the management device, and the vehicle without the driver's seat includes the network device.

  The management device according to the present invention acquires a vehicle connection or separation flag together with the vehicle ID, and when the connection or separation flag is confirmed, erases the IP address of the network device, and again The ID is acquired and the intra-organization network is constructed.

  As described above, according to the system according to the present invention, it is possible to quickly construct a network within a composition by setting an IP address to each network device.

It is a figure which shows the structural example of the network in organization which concerns on one Example of this invention. It is a flowchart which shows a mode that the network in organization at the time of train starting is constructed | assembled. It is vehicle ID structure information which shows the structure of vehicle ID. This is device configuration information indicating a network device mounted for each vehicle type. This is IP address configuration information indicating the configuration of IP addresses of network devices in the organization. This is a framework of an address management table for managing IP addresses of network devices in the organization. It is an address management table for managing IP addresses of network devices in the organization. It is a figure which shows the structural example of the network in composition at the time of the vehicle connection concerning one Example of this invention. It is a flowchart which shows a mode that the network in composition at the time of vehicle connection is constructed | assembled. This is a framework of an address management table for managing IP addresses of network devices in a composition when vehicles are connected. It is an address management table which manages the IP address of the network device in the organization when vehicles are connected.

  Embodiments according to the present invention will be described below with reference to the drawings. In this specification, a vehicle means one vehicle constituting a train, a train means a mode in which the vehicles are connected, and a train means a mode in which the vehicle actually operates. A case where a plurality of vehicles and vehicles are connected is assumed.

  In the first embodiment according to the present invention, a description will be given of how to set the IP address of each network device based on the vehicle ID and the device ID when starting the train and starting the operation.

FIG. 1 is a diagram showing a configuration example of an intra-organization network according to the first embodiment of the present invention.
In FIG. 1, reference numerals 1 to 4 denote vehicles and constitute a train of one train. Here, the direction of the arrow in FIG. 1-1 to 4-1 are network switches for connecting each network device, 1-2 and 4-2 are host servers for managing train operations, and 1-3 and 4-3 are for controlling each network device in the train. Management server 1-4, camera A 1-4 facing the traveling direction of the vehicle and photographing the vicinity of the right entrance door, and 1-5-4-5 facing the traveling direction of the vehicle, the vicinity of the left entrance door 1-6 to 4-6 are recording devices for recording images acquired by the cameras of the vehicles, and 1-7 and 4-7 are monitors for displaying images in the train. Here, the video of the camera A4 or the camera B5 is displayed on the monitor 1-7, which is a monitor mounted on the leading vehicle in the traveling direction, but may be displayed on the rear vehicle monitor 4-7.
The number of each network device in the figure is “device name + vehicle number + device number”. If it is necessary to distinguish each network device for each vehicle, “device name + vehicle number + device number” is used. ", And when calling without distinction," device name + device number ". For example, in the case of the camera A, it will be described as the camera A1-4 when distinguished for each vehicle, and as the camera A4 when not distinguished.

  In particular, the vehicle 1 and the vehicle 4 are vehicles having a driver's seat, and are respectively network switches 1-1 and 4-1, upper servers 1-2 and 4-2, management servers 1-3 and 4-3, and cameras A1-4. 4-4, cameras B1-5, 5-5, recording devices 1-6, 4-6, monitors 1-7, 4-7, and each network device has network switches 1-1, 1-4. Connected through. Further, the vehicle 2 and the vehicle 3 are vehicles that do not have a driver's seat, and are respectively network switches 2-1 and 3-1, cameras A 2-4 and 3-4, cameras B 2-5 and 3-5, and a recording device 2-2. 6 and 3-6, and each network device is connected to a network such as a LAN (Local Area Network) via network switches 1-1 and 4-1. In addition, a network within a train is constructed by connecting network switches 1 between adjacent vehicles. The host server 2 and the management server 3 are mounted on the leading vehicle and the trailing vehicle, respectively, and one of them operates as a main and one of them operates as a sub. Basically, the main controls and manages each network device, and the sub does not operate to control other devices. Various ways of determining the main of the management server 3 are conceivable. For example, the management server 3 may be mounted on the leading vehicle, or may have a smaller IP address assigned by the host server 2. In the present embodiment, the upper server 1-2 and the management server 1-3 operate as mains.

  This network includes a host network including a host server 2 and a management server 3 that are mainly connected to a vehicle operation (not shown), a management server 3, a network switch 1, a camera A4, a camera B5, a recording device 6, and a monitor. 7 includes a monitoring network to which devices relating to video monitoring including 7 are connected. The upper network and the monitoring network are divided by a subnet mask, and all communication between the upper network and the monitoring network is performed by the management server 3. Details will be described later.

First, with reference to FIGS. 2, 3, 4, 5, 6, and 7, the construction of the in-composition network of the monitoring system when the train is started will be described.
FIG. 2 is a flowchart showing a state in which the intra-composition network at the time of starting the train is constructed. FIG. 3 is vehicle ID configuration information indicating a configuration indicating what each digit of the vehicle ID indicates. FIG. 4 shows device configuration information indicating which network device is mounted for each vehicle type because the device mounted for each vehicle type is different. FIG. 5 is IP address configuration information indicating the configuration of the IP address of the network device in the organization determined using the vehicle ID and the device ID. FIG. 6 is an address management table framework for managing IP addresses of network devices in the train, and FIG. 7 is an address management table for managing IP addresses of network devices in the train. Represents the configuration of the network equipment. 2 will be described with reference to FIGS. 3, 4, 5, 6, and 7.

  When the power of the train is turned on, power is supplied to each network device in the train to start up (start up). First, the host network starts preparing the equipment for operation, and in the process, the host server 1-2 uses DHCP (Dynamic Host Configuration Protocol) to assign an IP address on the host network side to the management server 1-3. (S1). Subsequently, the upper server 1-2 notifies the operation information to the management server 1-3 (S2).

  Here, in this embodiment, the operation information is information such as a vehicle ID, a leading vehicle (traveling direction), a speed, a current position, a door opening / closing, a connection flag, and a separation flag. This is a combination of a power type, a vehicle type, a number of vehicles for formation, and a four-digit number indicating a car number, details of which will be described later.

  The management server 1-3 analyzes the vehicle ID in the operation information received based on the configuration information (FIG. 3) of the vehicle ID stored in advance by itself, and the device configuration for each vehicle type stored in advance. With reference to the information (FIG. 4), an address management table framework (FIG. 6) is generated (S3). Also, the management server 1-3 calculates an IP address from the first octet to the third octet based on the analyzed vehicle ID (S4). The method for calculating the IP address will be described later. Then, the management server 1-3 calculates the IP address of each network device based on the device ID of the device configuration information (FIG. 4) stored in advance and the IP address calculated in S4, and the address management table. It is registered and updated in the IP address field of (FIG. 7) (S5).

  When the setting of the IP address of each network device is completed, the management server 1-3 broadcasts a packet including its own IP address to each network device of the monitoring network (S6). As a result, each network device in the organization can know the IP address of the management server and can communicate within the monitoring network. When the management server 1-3 establishes a communicable state within the monitoring network, it notifies the host server 1-2 that it is communicable (S7). When the preparation of the in-train system other than the monitoring network is completed, the train operation starts (operation).

Next, the operation of each device during normal train operation will be described.
When the train starts operation in the traveling direction, the upper server 1-2 periodically transmits operation information to the management server 1-3, and the management server 1-3 The network switch 1, the camera 4, the camera 5, the recording device 6, and the monitor 7 are controlled.

  When the train stops at the station and gets on and off the passenger, the management server 1-3 sets the camera on the recording device 6 based on the speed information and door opening / closing information in the operation information received from the host server 1-2. Control is performed to start or stop recording of the video of A4 or camera B5. Based on the received speed information and door opening / closing information, the recording device 6 starts recording video of the camera A or camera B if the speed is equal to or less than a predetermined value and the door is open, and the speed is greater than the predetermined value. If the door is closed, the video recording of the camera A or the camera B is stopped. For example, if the speed is 5 km / h or less and the right door is opened, the recording device 6 starts recording video of the camera A4 mounted on the same vehicle based on control from the management server, and the speed is 5 km. When it is larger than / h and the right door is closed, the video recording of the camera 4A is stopped.

  Also, the management server 1-3 controls the monitor 1-7 to turn on or off the video display of the camera A4 or the camera B5 based on the speed information and door opening / closing information received from the upper server 1-2. . Based on the received speed information and door opening / closing information, the recording device 6 starts displaying the image of the camera A or the camera B if the speed is equal to or lower than the predetermined value and the door is open, and the speed is larger than the predetermined value. If the door is closed, the display of the image of the camera A or the camera B is stopped. For example, if the speed is 5 km / h or less and the left door is opened, the monitor 1-7 starts displaying the video of the camera B5 based on the control from the management server, and the speed is higher than 5 km / h. And when the left door is closed, the display of the image of the camera 5B is stopped.

  From here, setting of the IP address will be described with reference to FIGS. 3, 4, 5, 6, and 7.

  The vehicle ID is included in the operation information periodically notified from the upper server 1-2 to the management server 1-3. As shown in FIG. 3, the power type of each vehicle, the vehicle type, the number of vehicles in the organization, and It is a combination of four digits indicating the car number. The power type represents the type of energy that moves the vehicle, and includes, for example, a pneumatic vehicle that runs on diesel fuel, a train that runs on electric power, and the like. The vehicle type represents the type of vehicle, for example, whether there is a driver's seat and an engine or motor, and is a drive control vehicle that has both a driver's seat and an engine or motor, or a control vehicle that has a driver's seat and does not have an engine or motor. , A driving vehicle without a driver's seat and an engine or motor, and an accompanying vehicle without a driver's seat and an engine or motor. The number of vehicles indicates how many cars the one train consists of, and the car number indicates how many cars the car is. In this table, the number of vehicles and the number of cars are shown up to 4, but naturally there are cases where there are 5 or more.

  Here, the vehicle ID is set in 4 digits using the power type and the vehicle type, but instead of adding or replacing, the grade of the seat such as a normal car or a green car, the train type such as limited express, express or each station stop, refrigerated car or car A transportation type such as a car or a livestock house may be used, and the number of numbers may be 4 digits or less or 4 digits or more.

  The device ID is included in the device configuration information shown in FIG. 4 stored in advance by the management server 3, and is managed with a different number for each type of network device mounted on the vehicle. For example, “1” for camera A, “2” for camera B, “3” for recording device, “4” for monitor, “5” for network switch, management server Is “6”, which is the device ID of each network device. These vehicle IDs and device IDs may be not only numbers but also letters such as alphabets as long as they correspond to information such as vehicle type.

  The IP address is configured by binarizing the vehicle ID and the device ID and placing them at a predetermined bit position. As shown in FIG. 5, in the case of IPv4, it is composed of 32 bits of 8 bits × 4. However, in this embodiment, the subnet mask is set to “255.240.0.0” and the first 12 bits of the IP address are set as “fixed values”. 00001010.0000 "is set, the vehicle ID binarized to 12 bits after the 13th bit, and the device ID binarized to the remaining 8 bits are respectively binarized and arranged. That is, the vehicle ID is binarized and set to a total of 12 bits (“x” in the table) which is the lower 4 bits of the second octet and the third octet 8 bits, and the device ID is also binarized in the same manner. Set to 4 octets of 8 bits ("y" in the table).

  For example, when the device to be set is the camera A with the power type: diesel car, the vehicle type: control vehicle, the number of vehicles: 4, and the car number: 2, the vehicle ID is “0142” and the device ID is “1”. Become. When the vehicle ID is converted to a binary number, it is “10001110”, and when the device ID is converted to a binary number, it is “1”. When the binary vehicle ID and the device ID are applied to the respective positions x and y of the IP address, the IP address Is as follows. “00001010,00000000,10001110,00000001” = “10.0.142.1/12”

  Also, for example, when the device to be set is a recording device of power type: train, vehicle type: accompanying vehicle, number of vehicles: 4, car number: 4, the vehicle ID is “1444” and the device ID is “3”. " When the vehicle ID is converted into a binary number, it is “10110101110”, when the device ID is converted into a binary number, it becomes “11”, and when the binary vehicle ID and the device ID are applied to the respective positions x and y of the IP address, the IP address Is as follows. “00001010,00000101,10101110,00000011” = “10.5.174.3/12”

  Subsequently, the construction of the intra-composition network will be described with reference to FIGS. 4, 6, and 7.

  As shown in FIG. 4, the device configuration information associates network devices in the monitoring network mounted for each vehicle type, and is mounted on the vehicle using the vehicle type of the second digit of the vehicle ID as a key. The network device is read and used to create an address management table. It is also referred to when setting the IP address of the network device. In the present embodiment, the drive control vehicle and the control vehicle having the driver's cab are equipped with the camera A4, the camera B5, the recording device 6, the monitor 7, the network switch 1, and the management server 6, and the drive vehicle having only the cabin and the accompanying vehicle. The car is equipped with a camera A4, a camera B5, a recording device 6, and a network switch 5. For example, in the present embodiment, the first car with the vehicle ID “0041” is a drive control car, and therefore, the camera A4, the camera B5, the recording device 6, the monitor 7, the network switch 1, and the management server 6 are installed. It can be seen that the car No. 2 with the vehicle ID “0242” is a driving car, and therefore the camera A4, the camera B5, the recording device 6, and the network switch 5 are mounted.

  As shown in FIG. 6 or FIG. 7, the address management table is composed of the organization network, the vehicle network, the vehicle ID, the device ID, and the IP address of the network device from the left. The network within organization means a monitoring network within one organization, and indicates a range of IP addresses of networks divided by a subnet mask. In this embodiment, since the subnet mask is “11111111.11110000.00000000.00000000”, that is, “255.240.0.0”, the IP addresses that can be set are “00001010.00000000.00000000.00000000” to “00001010.00001111.11111111.11111111”, that is, “10.0.0.0/ From “12” to “10.15.255.255/12”. The vehicle network indicates a range of IP addresses in each vehicle. In the case of the present embodiment, if the vehicle has the vehicle ID “0041”, the settable IP address is changed from “10.0.41.0” to “10.0.41.255” based on the setting method of the IP address described above.

  When the management server 1-3 receives the operation information from the host server 1-2, the management server 1-3 acquires the vehicle ID from the operation information, and acquires in-composition network information and vehicle network information based on the vehicle ID configuration information. In addition, by referring to the device configuration information using the vehicle ID information as a key, the device ID of the network device mounted on the vehicle with the vehicle ID is acquired. Then, the in-composition network information, the vehicle network information, the vehicle ID, and the device ID acquired by these processes are collected using the top vehicle information, thereby creating the framework of the address management table shown in FIG. Further, the management server 1-3 binarizes the device ID, arranges it in the fourth octet of the vehicle network address, calculates the IP address of each network device, and associates it with the framework of the address management table. An address management table shown in FIG.

  Note that the arrangement order of the vehicles is determined using the leading vehicle information and the vehicle ID included in the operation information. From the top vehicle information, it can be determined whether the vehicle with the lowest car number or the car with the highest car number is the head. Since the car ID is included in the vehicle ID, the vehicle with the lowest car number can be the head. From there, it can be seen that if the vehicle with the highest car number is at the top, the vehicles are lined up in descending order.

  As described in detail above, according to the present embodiment, by setting an IP address to each network device based on operation information, it is possible to quickly construct a network within a train and operate a train.

  Next, in the second embodiment according to the present invention, when a train is newly connected, the IP address of each network device is set based on the vehicle ID and the device ID. This will be described with reference to FIGS. 10 and 11.

  FIG. 8 is a configuration example of the in-composition network when the vehicles are connected according to the second embodiment of the present invention, and the vehicle has the same configuration as the vehicles 1 to 4 described in the first embodiment. 5 to 8 are connected. As the monitoring network, the network switch 4-1 of the vehicle 4 and the network switch 5-1 of the vehicle 5 are connected. Since the configuration of the network device in each vehicle is the same as that of the first embodiment, the description of the parts already described in the first embodiment is omitted. Also in this embodiment, the direction of the arrow in FIG.

  5-1 to 8-1 are network switches for connecting each network device, 5-2 and 8-2 are host servers for managing train operations, and 5-3 and 8-3 are each network device in the train. The management server 5-4 to 8-4 faces the traveling direction of the vehicle and photographs the vicinity of the right entrance door, and 5-5 to 8-5 faces the traveling direction of the vehicle and the vicinity of the left entrance door. Are cameras B, 5-6 to 8-6 are recording devices that record images acquired by the cameras of the vehicles, and 5-7 and 8-7 are monitors that display images in the train.

  In particular, the vehicle 5 and the vehicle 8 are vehicles having a driver's seat, and are respectively network switches 5-1 and 8-4, upper servers 5-2 and 8-2, management servers 5-3 and 8-3, and a camera A5-4. 8-4, cameras B5-5, 8-5, recording devices 5-6, 8-6, monitors 5-7, 8-7, and each network device has network switches 5-1, 8-1. Connected through. Further, the vehicle 6 and the vehicle 7 are vehicles that do not have a driver's seat, and are respectively network switches 6-1 and 7-1, cameras A6-4 and 7-4, cameras B6-5 and 7-5, and a recording device 6-. 6 and 7-6, and each network device is connected via a network switch 6-1 and 7-1 via a network such as a LAN. In addition, the network switches 1 are connected to each other between adjacent vehicles, and the network switch 4-1 of the vehicle 4 and the network switch 5-1 of the vehicle 5 are connected to each other in the composition composed of the vehicle 1 to the vehicle 8. You are building a network. The upper server 2 and the management server 3 are mounted on the vehicle 1, the vehicle 4, the vehicle 5, and the vehicle 8, respectively, one of which is the main and the other is the sub. Basically, the main controls and manages each network device, and the sub does not operate to control other devices. There are various ways of determining the main of the management server 3. For example, the management server 3 may be a management server mounted on the leading vehicle, or may be a management server having the smallest IP address value given by the host server 2. Good. In the present embodiment, the upper server 1-2 and the management server 1-3 operate as mains.

  This network includes a host network including a host server 2 and a management server 3 that are mainly connected to a vehicle operation (not shown), a management server 3, a network switch 1, a camera A4, a camera B5, a recording device 6, and a monitor. 7 includes a monitoring network to which devices relating to video monitoring including 7 are connected. The upper network and the monitoring network are divided by a subnet mask, and all communication between the upper network and the monitoring network is performed by the management server 3.

First, with reference to FIGS. 3, 4, 5, 9, 10, and 11, the construction of a network within a composition of a monitoring system when a train is connected to a vehicle will be described.
FIG. 9 is a flowchart showing a state in which the intra-composition network is constructed when vehicles are connected. FIG. 10 is a framework of an address management table for managing IP addresses of network devices in the composition when vehicles are connected. FIG. 11 is an address management table for managing IP addresses of network devices in the composition when vehicles are connected. Represents the train vehicle organization and the configuration of the network equipment in each vehicle. A description will be given along FIG. 9 with reference to FIGS. 3, 4, 5, 10, and 11.

  While the train is operating, the upper server 1-2 periodically notifies the management server 1-3 of operation information (S11). The management server 1-3 confirms the received operation information each time, and confirms whether there is a connection flag (S12). If there is no connection flag in the operation information (No), the management server 1-3 waits for reception of the next operation information as it is, and proceeds to S11. On the other hand, if there is a connection flag in the operation information (Yes), the process proceeds to S13. The management server 1-3 prepares for vehicle connection according to the connection flag (S13). Although the notification of the regular operation information from the host server 1-2 is stopped along with the vehicle connection, this preparation is that the management server 1-3 does not judge the stop of the notification of the operation information as an abnormal situation. . The upper server 1-2 notifies the management server 1-3 of a monitoring network initialization command (S14). In accordance with the initialization command, the management server 1-3 releases (deletes) the IP address of each network device of the monitoring network and initializes the address management table (S15). When the connection of the vehicles is completed, the host network starts to prepare the equipment for operation again. In the process, the host server 1-2 uses DHCP to send the IP address on the host network side to the management server 1-3. Is given (S1 ′). Subsequently, the upper server 1-2 notifies the management server 1-3 of operation information (S2 ′).

  The management server 1-3 analyzes the vehicle ID in the operation information received based on the configuration information (FIG. 3) of the vehicle ID stored in advance by itself, and the device configuration for each vehicle type stored in advance. Referring to the information (FIG. 4), an address management table framework (FIG. 10) is generated (S3 ′). Further, the management server 1-3 calculates an IP address from the first octet to the third octet based on the analyzed vehicle ID (S4 ′). Then, the management server 1-3 calculates the IP address of each network device based on the device ID of the device configuration information (FIG. 4) stored in advance and the IP address calculated in S4, and the address management table. It is registered and updated in the IP address column of (FIG. 11) (S5 ′).

  When the setting of the IP address of each network device is completed, the management server 1-3 broadcasts a packet including its own IP address to each network device of the monitoring network (S6 ′). As a result, each network device in the organization can know the IP address of the management server and can communicate within the monitoring network. When the management server 1-3 establishes a communicable state within the monitoring network, it notifies the host server 1-2 that it is communicable (S7 ′). When the preparation of the in-train system other than the monitoring network is completed, the train operation starts (operation).

  In addition, when the separation of the vehicle occurs, only the connection flag of the present embodiment is changed to the separation flag, and when the separation and the connection of the vehicle occur, both the connection flag and the separation flag are notified. Is done. In the present embodiment, the connection flag and the separation flag have been described separately. However, the connection flag and the separation flag may be notified as a vehicle reorganization flag without being clearly divided into each.

  What is different from the first embodiment in this series of processes is that there are processes associated with the vehicle connection from S11 to S15 and that the network devices to be managed have increased as the vehicle is connected. To S7 ′ are basically the same as those in the first embodiment.

  As described in detail above, according to the present embodiment, when a network is reconstructed by connecting or disconnecting trains, an IP address is set for each network device based on operation information, so that the network within the organization can be quickly established. Can be constructed and trains can be operated.

  In addition, the configuration of the system and apparatus according to the present invention is not necessarily limited to the above-described configuration, and various configurations may be used. The present invention can also be provided as, for example, a method or method for executing the processing according to the present invention, a program for realizing such a method or method, or a recording medium for recording the program. It is also possible to provide various systems and devices. The application field of the present invention is not necessarily limited to the above-described fields, and the present invention can be applied to various fields.

  For example, in the first embodiment and the second embodiment, one train is composed of four vehicles. However, in practice, the train is not limited to four vehicles, and trains having different numbers of vehicles are connected to each other. Cases are also conceivable. There is no special change in each process just because the number of vehicles has changed.

  As for the camera, it is supposed to shoot near the door, but it is not limited to this, for example, it may shoot the state of the deck, the cabin or the outside of the vehicle, the video is always recorded or displayed, You may make it record or display by selection of operators, such as a driver. In addition, the number of cameras is two for one vehicle for convenience of explanation, but may be one or three or more. Further, the number of other recording devices and monitors is not particularly limited, and other different devices other than these may be mounted.

  In addition, in creating the address management table, the steps for creating the framework of the address management table and the steps for calculating and reflecting the IP address of each network device have been described separately. Good.

  In the IP address setting, the subnet mask is set to “255.240.0.0”, a fixed value is set from the 1st bit to the 12th bit, the vehicle ID is set from the 13th bit to the 24th bit, and the device ID is set from the 25th bit to the 32nd bit. However, the subnet mask, fixed value, vehicle ID, device ID value, number of digits, and position can be variously changed depending on the scale of the system.

  In addition, the device configuration information indicating which network device is mounted for each vehicle type is stored in the management server in the above-described embodiment, but is stored in the recording device, and the management server performs address management. When creating the table, the device configuration information may be read from the storage device.

  In the present embodiment, IPv4 has been described, but the same concept can be applied to IPv6.

  The present invention can be applied not only to railway vehicles, but also to a system in which a plurality of systems of a predetermined unit including network devices are connected or separated, and is effective.

1, 2, 3, 4, 5, 6, 7, 8: Vehicle, 1-1, 2-1, 3-1, 4-1, 5-1, 6-1, 7-1, 8-1: Network switch, 1-2, 4-2, 5-2, 8-2: host server, 1-3, 4-3, 5-3, 8-3: management server, 1-4, 2-4, 3 -4, 4-4, 5-4, 6-4, 7-4, 8-4: Camera A, 1-5, 2-5, 3-5, 4-5, 5-5, 6-5 7-5, 8-5: Camera B, 1-6, 2-6, 3-6, 4-6, 5-6, 6-6, 7-6, 8-6: Recording device, 1-7, 4-7, 5-7, 8-7: Monitor.

Claims (5)

A network system within a organization composed of one or more vehicles,
Storing a plurality of the ID of the vehicle type, the plurality of device configuration information to the device ID is attached corresponds a number indicating a plurality of network devices to be mounted on each ID of the vehicle type to vehicle of the vehicle type Storage means;
Management means for managing the network device;
The management means acquires vehicle IDs including the vehicle type ID and the car number for each vehicle constituting the train , and each vehicle is based on the vehicle ID and the device configuration information stored in the storage means. the IP address of the plurality of network devices to determine the, also, within the train, characterized in that to create an address management table that associates with the vehicle ID and the device ID of entire knitting formed with the IP address Network system.   2. The intra-organization network system according to claim 1, wherein the IP address of the network device is determined by binarizing the vehicle ID and the device ID and disposing them at a predetermined bit position. The in-composition network system according to claim 1, wherein the vehicle ID further includes an ID indicating a power type of the vehicle and an ID indicating the number of trained vehicles. A method for constructing an in-organization network composed of one or more vehicles,
The ID of a plurality of vehicles type, a plurality of device configuration information to the device ID is attached corresponds a number indicating a plurality of network devices to be mounted on each ID of the vehicle type to vehicle of the vehicle type and stored ,
Vehicle IDs including the vehicle type ID and the car number are acquired for the vehicles constituting the train ,
On the basis of the vehicle ID and the device configuration information, the IP address of the plurality of network devices of each vehicle to determine,
Intra-network construction method characterized by creating an address management table that associates with the vehicle ID of entire knitting formed with the device ID and the IP address. A management device that manages a plurality of network devices mounted on the vehicle that is composed of one or more vehicles,
A storage for storing device configuration information in which a plurality of vehicle type IDs and a device ID that is a number indicating a plurality of network devices mounted on the vehicle type vehicle are associated with each of the plurality of vehicle type IDs. With means,
The vehicle ID including the vehicle type ID and the car number is acquired for the vehicles constituting the train, and the plurality of networks of each vehicle is obtained based on the vehicle ID and the device configuration information stored in the storage means. A management apparatus that determines an IP address of a device and creates an address management table in which the vehicle ID, the device ID, and the IP address of the entire organization are associated with each other.