JP5520917B2 - Information transmission apparatus and information transmission method - Google Patents

Description

  The present invention relates to an information transmission system mounted on a railway vehicle.

  In railway vehicles, the number of vehicles in a train and the order of the trains change dynamically, such as when multiple trains are combined and run as one train, or one train is divided into multiple trains. It can happen.

  On the other hand, in an information transmission system mounted on a railway vehicle, some of the parameters necessary for the transmission device that constitutes the information transmission system to perform data transmission / reception processing or relay processing correspond to the number and arrangement order of vehicles in the train. May be set. An example of such a parameter is an IP (Internet Protocol) address. By including information on the number of both cars from the beginning or the car number in the bit string of the IP address, the position in the organization of the transmission source can be determined by simply referring to the IP address of the transmission source without having to analyze the contents of the data. The relationship becomes clear, and the processing load related to data transmission / reception processing and relay processing is reduced.

  However, as described above, if the number of vehicles in a train and the order of arrangement change dynamically, the order of arrangement of individual transmission devices in the composition also changes, and the assigned IP address must be changed accordingly. Don't be.

  As a method for reassigning an IP address in response to a change in the number of vehicles in the formation and the order of arrangement, for example, a railway vehicle network system described in Patent Document 1 is known.

  This system adopts TCP (Transmission Control Protocol) / IP and UDP (User Datagram Protocol) / IP as the transmission protocol, and assigns the vehicle organization identification number and the transmission device identification number to the 3rd and 4th bytes of the IP address. The IP address of the transmission device of the leading vehicle and the last vehicle or the combined parts of different trains is fixed, and even when the number of vehicles in the train is increased or decreased, each of the other devices based on the transmission device having the fixed IP address The IP address of the transmission apparatus was assigned.

JP 2005-175904 A

  The technique described in Patent Document 1 fixes the IP address of the transmission device of the leading vehicle and the last vehicle or the combined parts of different formations, or the position information in the composition of the vehicle in which the transmission device is installed (first The vehicle device or the last vehicle or the combined portion of different trains) is notified from the vehicle equipment, and the IP address is automatically set based on the information.

  When the IP address is fixed, it is necessary to set the IP address in advance before installing the transmission device in the vehicle, or a setting switch (such as a dip switch or a rotary switch) or setting after the vehicle is installed. It is necessary to set an IP address using a terminal or the like. However, in the method of setting the IP address in advance before installing the transmission device in the vehicle, another vehicle transmission device cannot be used when replacing the device in the event of a failure, and the replacement device is There is a problem that it is costly because it is necessary to prepare for each vehicle, and in the method of setting the IP address after the vehicle is installed, the amount of work increases when the vehicle is installed, and a setting error may occur. There is.

  In addition, when the IP address is automatically set by the above method, a function or device for notifying the transmission device of position information (the leading vehicle, the last vehicle, or a combined portion of different formations) in the knitting of the vehicle in which the transmission device is installed Is required on the vehicle side, which increases the number of devices and parts.

  Further, not only the transmission device but also other devices installed in the vehicle have the same problem as described above.

  Therefore, in the present invention, not only the transmission device but also other devices installed in the vehicle, before installing the device in the vehicle, it is not necessary to set in advance position information in the formation of the vehicle in which the device is installed, Alternatively, there is provided an information transmission method and apparatus capable of detecting position information and arrangement order in the formation of a vehicle in which the apparatus is installed by exchanging information among a plurality of apparatuses without being notified. provide. It is another object of the present invention to provide an information transmission method and apparatus in which an apparatus can determine information such as an IP address based on the detected position information and arrangement order and can automatically set the information.

  In order to solve the above-described problems, the present invention provides an information transmission apparatus for a railway vehicle that performs data transmission between the railway cars of a train set composed of a plurality of railway cars. A relay device that relays data received from an adjacent vehicle and a data processing device that is connected to the relay device via a branch transmission line, the data processing device including information on a transmission direction When the data is output to the relay device, the relay device has means for determining the data relay direction according to the transmission direction information included in the data received from the branch transmission line or the main transmission line, and performs data processing. The device detects the position of the own device in the train set from the data received from the relay device.

  Or, a relay device that is connected to a relay device mounted on an adjacent vehicle via a trunk transmission line, performs a relay process of data received from the adjacent vehicle, and a data processing device that is connected to the relay device via a branch transmission line, A data transmission method for transmitting data between railway vehicles of a train train composed of a plurality of railway vehicles, wherein data including information on a transmission direction is output from the data processing device to the relay device A relay device that receives the data determines a relay direction of the data according to transmission direction information included in the data, and the data processing device that receives the data trains according to the number of times the data is received. Detecting the position of the device itself.

  In the present invention, it is not necessary to set in advance or notify the position information in the composition of the vehicle where the device is installed before installing the device in the vehicle. Can be used without changing the settings of the vehicle, and after setting up the vehicle, setting information (such as dip switches and rotary switches) and setting terminals can be used to set position information and order of arrangement. Setting error does not occur because it is unnecessary.

  In addition, even if position information in the knitting of the vehicle in which the device is installed is not set or notified in advance, the device only needs to exchange information between the devices, so that the device can detect the position information and the arrangement order in the knitting of the vehicle. Can be automatically set by determining information such as an IP address in the apparatus based on the detected position information and arrangement order, so that multiple formations can be combined or divided, It is possible to deal with a case where the vehicle configuration changes dynamically.

  In addition, even if the vehicle in which the device is installed is changed to a different vehicle or a vehicle with a different organization, the device does not need to be added or changed, and the device is placed in the changed installation position. Corresponding operation is possible.

It is a figure which shows the structure of the information transmission system which concerns on one Embodiment of this invention. It is a figure which shows the structure of the relay apparatus which concerns on one Embodiment of this invention. It is a figure which shows the detection flow which concerns on one Embodiment of this invention. It is a figure which shows the operation | movement which concerns on one Embodiment of this invention. It is a figure which shows the detection flow which concerns on one Embodiment of this invention. It is a figure which shows the operation | movement which concerns on one Embodiment of this invention. It is a figure which shows the structure of the information transmission system which concerns on one Embodiment of this invention. It is a figure which shows the structure of the information transmission system which concerns on one Embodiment of this invention. It is a figure which shows the structure of the information transmission system which concerns on one Embodiment of this invention. It is a figure which shows the structure of the information transmission system which concerns on one Embodiment of this invention. It is a figure which shows the structure of the data relay part which concerns on one Embodiment of this invention. It is a figure which shows the structure of the information transmission system which concerns on one Embodiment of this invention. It is a figure which shows the structure of the display apparatus which concerns on one Embodiment of this invention. It is a figure which shows the structure of the information transmission system which concerns on one Embodiment of this invention.

  In the embodiment of the present invention, the relay device and the data processing device are the positional information in the formation of the vehicle in which the own device such as the car number is installed and the information regarding the relative arrangement order with other data processing devices. Each data processing device can be used when new position information or information on the arrangement order is required, such as when the knitting configuration changes due to the combination or division of multiple trains, at power-on or reset. The position confirmation data is transmitted to the branch line transmission path.

  The position confirmation data includes information specifying the transmission direction to the main transmission line or branch transmission line, and all the information specifying the transmission direction included in the position confirmation data transmitted by all data processing devices is the same. It is. When a plurality of types of data processing devices having different operations and functions are mixed, different information may be defined for each type regarding the information specifying the transmission direction.

  Each relay device predetermines a correspondence relationship between information specifying the transmission direction included in the position confirmation data and a direction in which the position confirmation data is relayed on a trunk transmission line, a branch transmission line, or the like, When confirmation data is received, it is relayed in a predetermined direction. The correspondence relationship is the same for all relay apparatuses, and the result is the same regardless of which vehicle the relay apparatus is connected to.

Each data processing apparatus determines the position information of the own apparatus, information on the arrangement order, and the like based on the number of pieces of position confirmation data received from the relay apparatus and the data contents.
Hereinafter, detailed embodiments of the present invention will be described with reference to the drawings.

[First Embodiment]
A first embodiment will be described.
First, FIG. 1 shows a configuration example of an information transmission system according to the first embodiment.

  In the information transmission system in FIG. 1, a train is composed of a plurality of vehicles 1. Each vehicle 1 includes a relay device 2 for transmitting / receiving or relaying data between vehicles, a main transmission line 9 for connecting the relay device 2 of each vehicle, and a train running such as an electric motor and a brake installed in each vehicle. A data processing device 990 that controls functions or controls functions other than train travel, such as air conditioning and interior lighting, and a branch transmission line 99 that connects the relay device 2 and the data processing device 990 are included.

  FIG. 2 shows the configuration of the relay device 2. The relay device 2 in FIG. 2 includes a data relay unit 3 and a data distribution unit 4.

  The data relay unit 3 relays data received from one main transmission line 9 to the other main transmission line 9, sends data relayed from the main transmission line 9 to the branch transmission line 99 to the data distribution unit 4, and And a function of performing processing of relaying data received from the branch transmission line 99 via the data distribution unit 4 to the main transmission line 9.

  Further, the data relay unit 3 stores “destination information” indicating the destination of the data, such as a destination address, and information indicating the trunk transmission line or branch transmission line of the relay destination in association with each other. For example, as shown in FIG. 2, ports (1), (2), and (3) are numbered to the ports to the transmission path of the data relay unit 3, and the data of the destination information “A” is port (1). ) And (2) only, and the destination information “B” data stores information such as relaying only to ports (2) and (3).

  The data distribution unit 4 is a part of the branch line transmission path 99 and has a function of connecting a plurality of data processing devices 990 and the relay device 2.

  In this embodiment, as an example, the data relay unit 3 uses a switching hub or a layer 3 switch used in an IEEE 802.3 standard LAN, and an IP address or a MAC address is used as destination information. The destination address and relay destination port can be fixedly set. Such a function can be realized by using, for example, a Static MAC Address setting function implemented in KS8995MA, which is a switching device manufactured by MICREL.

  The main transmission line 9 and the branch line transmission line 99 use an IEEE 802.3 standard LAN, and the data distribution unit 4 uses a switching hub or a repeater hub used in the IEEE 802.3 standard LAN. To do.

  In the following description and drawings, for simplification of description, the number of data processing devices 990 connected to the relay device 2 is one, and description and description of other data processing devices 990 are omitted.

  The data distribution unit 4 is only required to connect the data relay unit 3 and the plurality of data processing devices 990 and to relay the data as they are without altering the data. Think of it as part of Road 99.

  Next, in FIG. 3 and FIG. 4, a procedure for the data processing device 990 to detect the position information and arrangement order of the own device will be described.

  The data processing device 990 serves as a trigger for starting the detection of the position and the arrangement order, such as the number of vehicles 1 in the composition and the arrangement order changing by turning on the power to the vehicle 1, resetting the apparatus, dividing or joining the composition When an event occurs (detection procedure 9001), each data processing device 990 transmits information specifying the transmission direction to the main transmission line or the branch transmission line, that is, the destination IP address “239.0.0” as shown in FIG. .1 ”(destination MAC address is“ 01-00-5E-00-00-01 ”) is transmitted to the branch line 99 (detection procedure 9002). Here, the inside of the packet data may be an arbitrary value.

  On the other hand, all the relay apparatuses 2 installed in each vehicle 1 have information specifying the transmission direction to the trunk transmission line or the branch transmission line, that is, as shown in FIG. 4, the destination IP address “239.0.0. 1 ”(destination MAC address is“ 01-00-5E-00-00-01 ”) is set to be relayed to ports (2) and (3). That is, when a packet with the destination IP address “239.0.0.1” is received from the port (1), the packet is relayed to the ports (2) and (3), and the packet is received from the port (2). Then, it means to relay only to port (3), and when a packet is received from port (3), it means to relay only to port (2). In the following description, the ports (1), (2), and (3) of the relay device 2 as shown in FIG. 4 are synonymous with the ports (1), (2), and (3) of the data relay unit shown in FIG. Suppose there is. Further, the destination IP address “239.0.0.1” (the destination MAC address is “01-00-5E-00-00-01”) is an example in the present embodiment, and other values may of course be used.

  The relay apparatus 2 that has received the location confirmation packet 301 from the branch transmission line 99, that is, the port (3), has a destination IP address of “239.0.0.1”, so that only the port (2) of the trunk transmission line 9 is used. Relaying, the location confirmation packet 301 reaches the port (1) of the adjacent relay device 2.

  Next, when the adjacent relay device 2 receives the location confirmation packet 301 from the port (1) of the trunk transmission line 9, the destination IP address is “239.0.0.1”, so the trunk transmission line 9 Are relayed to the port (2) and the port (3) of the branch line transmission line 99.

  The location confirmation packet 301 transmitted to the branch transmission path 99 is received by the data processing device 990, and the destination IP address is “239.0.0.1”, so the data processing device 990 is the location confirmation packet 301. And the number of received position confirmation packets 301 is incremented by 1 (detection procedures 9003, 9004, 9005).

  The data processing device 990 measures the time from a certain point in time after the occurrence of the trigger event, detects the number of received position confirmation packets 301 after a predetermined time has passed (detection procedure 9006), and determines the position and arrangement order of the device itself. (The value of P in the detection procedure 9007).

  In the example of FIG. 4, if the four data processing devices 990 are named a, b, c, d from the head (the vehicle at the end of the relay device 2 in the port (1) direction), a, b, c, d After transmitting the location confirmation packet 301 from each of the data processing devices 990, the data processing device a does not receive the location confirmation packet 301 (P = 0 in FIG. 3), and the data processing device b receives the location confirmation packet 301 as 1. Are received (P = 1 in FIG. 3), the data processing device c receives two location confirmation packets 301 (P = 2 in FIG. 3), and the data processing device d receives three location confirmation packets 301 (FIG. 3). 3 P = 3). That is, each data processing device 990 can determine that its own device is the device at the P + 1th position (arranged in the order of P + 1) counting from the leading vehicle. Further, it can be determined that the data processing device a with P = 0 is the leading vehicle.

  Based on this result, the data processing device 990 can set a setting value corresponding to the position and arrangement order, for example, an IP address.

  Further, the information on the position and arrangement order detected in the above-described procedure, for example, the value of P or P + 1, for example, a light emitting diode (LED) or a liquid crystal display (LCD) mounted on each data processing device 990 is detected. It may be possible to display the information on the display device so that an operator who maintains the data processing device 990 can confirm whether or not the setting is correctly performed by viewing the display device from the outside.

  By the way, in the above description, the trunk transmission line 9 and the branch transmission line 99 are examples using an IEEE 802.3 standard LAN, but of course, the trunk transmission line 9 and the branch transmission line 99 are not limited to the IEEE 802.3 standard LAN. Other communication means such as ATM (Asyncronous Transfer Mode), IEEE 802.5 standard LAN, IEC 61158 standard field LAN, etc. can be used.

The same applies to all the following embodiments.
Further, in the above description, the data relay unit 3 is exemplified by using a switching hub or a layer 3 switch used in the IEEE802.3 standard LAN, but of course, the configuration as shown in FIG. It is feasible.

  That is, in FIG. 11, the data relay unit 3 accumulates transmission / reception data, processing programs, initial setting information, logs, and the like with the CPU 2000 that performs data relay processing, a cache memory, a main memory, and the like. It has an interface function for data transmission / reception between a storage device 2003 such as a hard disk, a silicon disk, or a non-volatile memory for storing information, etc., and the data relay unit 3 of the partner relay device 2 via the trunk transmission line 9. It comprises a trunk transmission line interface device 2001 and a branch transmission line interface device 2002 having a data transmission / reception interface function between the data processing device 990 via the branch transmission line 99. Switch or keyboard to input initial setting items such as operation mode A force device 2004, check the setting items may implement an output device 2005 such as a light emitting diode for displaying the operating status and the log information (LED) or a liquid crystal display (LCD).

  In the case of the data relay unit 3 shown in FIG. 11, the destination information is not limited to the destination address, and a field indicating the destination information may be provided in the data field.

  The arithmetic unit 2000 determines the transmission path for relaying data from the destination information of the data received from the main transmission line interface apparatus 2001 or the branch transmission line interface apparatus 2002, and the main transmission line interface apparatus 2001 or the branch transmission line interface apparatus. Output to one or both of 2002.

This also applies to all the following embodiments.
The first embodiment has been described above.
According to the embodiment described above, in the present invention, before installing the device in the vehicle, it is not necessary to preset position information in the formation of the vehicle in which the device is installed or to be notified, When replacing the device in the event of a failure, another vehicle device can be used without changing the settings, and the position information can be obtained using a setting switch (such as a dip switch or rotary switch) or a setting terminal after the vehicle is installed. There is no need to set the order and the setting error does not occur.

  In addition, even if the position information in the knitting of the vehicle in which the device is installed is not set or notified in advance, the devices exchange the information among the plural devices so that the device can detect the position information and the arrangement order in the knitting of the vehicle. Can be automatically set by determining information such as an IP address in the apparatus based on the detected position information and arrangement order, so that multiple formations can be combined or divided, It is possible to deal with a case where the vehicle configuration changes dynamically.

  In addition, even if the vehicle in which the device is installed is changed to a different vehicle or a vehicle with a different organization, the device does not need to be added or changed, and the device is placed in the changed installation position. Corresponding operation is possible.

[Second Embodiment]
In the first embodiment described above, the data processing device 990 can determine the position and arrangement order from the head (or the tail) of the device itself, but the position and arrangement order from the tail (or the head), as well as data The total number of processing devices cannot be determined.

Therefore, in the second embodiment, the following operation is added in addition to the operation of the first embodiment.
All relay devices 2 installed in each vehicle 1 have information specifying the transmission direction to the main transmission line or branch transmission line, that is, as shown in FIG. 6, the destination IP address “239.0.0.2”. "(Destination MAC address is" 01-00-5E-00-00-02 ") is set to be relayed to ports (1) and (3). That is, when the packet of the destination IP address “239.0.0.2” is received from the port (1), it is relayed only to the port (3), and when it is received from the port (2), it is relayed to the ports (1) and (3). If it is received from the port (3), it means to relay only to the port (1). Note that the ports (1), (2), and (3) of the relay device 2 as shown in FIG. 6 are synonymous with the ports (1), (2), and (3) of the data relay unit shown in FIG. Further, the destination IP address “239.0.0.2” (the destination MAC address is “01-00-5E-00-00-02”) is an example in the present embodiment, and other values may of course be used.

  As shown in FIG. 5, the data processing device 990 changes the position and arrangement order, such as the number of vehicles 1 in the formation and the arrangement order are changed by turning on the power to the vehicle 1, resetting the apparatus, dividing or joining the formation. When an event serving as a trigger for starting detection occurs (detection procedure 9001), each data processing device 990, in addition to the position confirmation packet 301, information specifying the transmission direction to the main transmission line or the branch transmission line, that is, As shown in FIG. 6, the second location confirmation packet 302 including the destination IP address “239.0.0.2” (destination MAC address is “01-00-5E-00-00-02”) is transferred to the branch transmission line. 99 (detection procedure 9011). Here, the inside of the packet data may be an arbitrary value.

  The relay apparatus 2 that has received the second location confirmation packet 302 from the branch transmission line 99, that is, the port (3), has a destination IP address of “239.0.0.2”, so the port (1) of the trunk transmission line 9 The second position confirmation packet 302 reaches the port (2) of the adjacent relay device 2.

  Next, when the adjacent relay device 2 receives the second location confirmation packet 302 from the port (2) of the trunk transmission line 9, the destination IP address is “239.0.0.2”, so that trunk transmission is performed. Relay to the port (1) of the route 9 and the port (3) of the branch line transmission route 99.

  The second location confirmation packet 302 transmitted to the branch line transmission path 99 is received by the data processing device 990. Since the destination IP address is “239.0.0.2”, the data processing device 990 accepts the second location confirmation packet. Recognizing that it is the packet 302, the reception number of the second position confirmation packet 302 is incremented by 1 (detection procedures 9012, 9013, 9014).

  The data processing device 990 measures the time from a certain time after the trigger event occurs, detects the number of received second position confirmation packets 302 after a certain time has passed (detection procedure 9006), and determines the position of the device itself. The arrangement order is determined (Q value of detection procedure 9015).

  In the example of FIG. 6, after transmitting the second location confirmation packet 302 from each of the data processing devices 990 a, b, c, and d, the data processing device d does not receive the second location confirmation packet 302 (FIG. 5). Q = 0), the data processing device c receives one second location confirmation packet 302 (Q = 1 in FIG. 5), and the data processing device b receives two second location confirmation packets 302 (FIG. 5). Q = 2), the data processing device a receives three second position confirmation packets 302 (Q = 3 in FIG. 5). That is, each data processing device 990 can determine that its own device is a device at the Q + 1th position (arranged in the order of Q + 1) from the last vehicle. Further, it can be determined that the data processing device d with Q = 0 is the last vehicle.

  Based on this result (the value of Q) and the result of the first embodiment (the value of P), the data processing device 990 can determine its position and arrangement order and the total number of data processing devices. That is, the total number of data processing devices 990 is (P + Q + 1), and the position of the own device in the train is (P + 1) th from the first vehicle and (Q + 1) th from the last vehicle. If one data processing device is installed in each vehicle, the number of vehicles in the train is (P + Q + 1), and it is understood that the own device is installed in the (P + 1) car.

  Based on the value thus obtained, a setting value such as an IP address can be set for each device.

  In addition, the information on the position and arrangement order detected in the above-described procedure, for example, the values of P, Q, P + 1, Q + 1, P + Q + 1, and the like are mounted on each detected data processing device 990. It is possible to display on a display such as a display (LCD), so that an operator who maintains the data processing device 990 can confirm whether or not the setting is correct by viewing the display from the outside. May be.

The second embodiment has been described above.
As described above, in the present invention, in addition to the effects of the first embodiment, the total number of devices installed in the knitting can be detected, and the number of devices installed from the head and tail in all the devices in the knitting can be detected. Therefore, it is possible to accurately grasp the position of the own apparatus in the knitting.

  Also, even when multiple trains are combined or divided and the number of devices in the train is changed, each data processing device can autonomously detect the changed configuration, that is, the position of its own device in the train. it can.

[Third Embodiment]
In the first and second embodiments described above, the main transmission line 9 and the branch transmission line 99 have a single system configuration. However, in order to improve the reliability of the system against a transmission line failure, the main line and the branch transmission line 9, 99 or a configuration in which the relay apparatus 2 is a multiplex system is also conceivable.

  Therefore, in the third embodiment, as an example of multiplexing, as shown in FIG. 7, a configuration in which each relay device 2 and a trunk transmission line and a branch transmission line are duplexed is shown, one of which is a system 1 In the system relay device 21, the system 1 trunk transmission line 91 and the system 1 branch transmission line 991 are connected, and the other system is connected to the system 2. In the system 2 relay device 22, the system 2 trunk transmission line 92 and system 2 branch transmission line 992 are connected. .

  The data processing device 990 of each vehicle 1 is connected to the system 1 branch transmission line 991 and the system 2 branch transmission line 992, and the data processing device 990 is independent of both the system 1 and system 2 independently of the first implementation described above. Processing similar to that of the embodiment or the second embodiment is performed. That is, the number of relay devices and the arrangement order can be detected independently for the first and second systems, and the detection results of both can be compared. As a result of comparison, if there is a difference between the two detection results, it can be seen that a failure has occurred in either system.

For example, FIG. 8 shows an example when a transmission line failure occurs.
FIG. 8 shows an example in which a failure has occurred in the first-system trunk transmission line 91 between the second and third cars.
When each data processing device 990 performs the same procedure as in FIGS. 3 and 4 as the first embodiment independently for the 1st system and the 2nd system, the data processing apparatus a has P = 0 for both the 1st system and the 2nd system. In the processing device b, P = 1 for both the 1 system and the 2 system, but for the data processing device c, P = 0 for the 1 system, P = 2 for the 2 system, and P = 1, 2 system for the 1 system in the data processing device d. P = 3.

  The data processing device c is P = 2 in the second system, and it can be seen that there are two data processing devices on the head side. However, in the first system, P = 0 and the first position confirmation packet 301 is not received from the head side. Since it is reception, it can be determined that a failure has occurred in the first-system trunk transmission line on the leading vehicle side or the first-system branch transmission line in the host vehicle.

  The data processing device d is P = 3 in the second system, and it can be seen that there are three data processing devices on the head side. However, in the first system, P = 1, and the first position confirmation packet 301 is set to 1 from the head side. Since only one is received, it can be determined that a failure has occurred in the 1-system trunk transmission line beyond the 1 vehicle on the leading vehicle side.

  In addition, when each data processing device 990 performs the same procedure as that in FIGS. 5 and 6 as the second embodiment independently for the 1st system and the 2nd system, the data processing apparatus a 1 uses P = 0, Q = P = 0 and Q = 3 in the 1st and 2nd systems, P = 1 and Q = 0 in the 1st data processing apparatus b, P = 1 and Q = 2 in the 2nd system, and P = 1 in the 1st system in the data processing apparatus c. 0, Q = 1, 2 systems, P = 2, Q = 1, and in the data processing apparatus d, 1 system, P = 1, Q = 0, 2 systems, P = 3, and Q = 0.

  Therefore, four data processing devices 990 are installed in total, and when one data processing device is installed in each vehicle, each data processing device installed in each vehicle has its own device position, the number of vehicles, and a failure. The location of occurrence can be determined. In other words, the data processing device a can determine that there are four vehicles, the own device is in the first car, and that a failure has occurred in the main transmission line 91 between the second car and the third car. b, it can be determined that there are four vehicles, the own device is in the second car, and a failure has occurred in the main transmission line 91 between the second car and the third car. There are four vehicles, the own device is in the third car, and it can be determined that a failure has occurred in the main transmission line 91 between the second car and the third car. The data processing apparatus d has four cars, It can be determined that the device is in the No. 4 car, and that a failure has occurred in the main system transmission line 91 between the No. 2 car and the No. 3 car.

  Further, the information on the position and arrangement order in the knitting detected in the above procedure, for example, the values of P, Q, P + 1, Q + 1, P + Q + 1, etc. are mounted on each detected data processing device 990 for each system. Each data processing device can be displayed on a display such as a light emitting diode (LED) or a liquid crystal display (LCD), and an operator who maintains the data processing device 990 visually observes the display from the outside. It may be possible to confirm whether or not it is correctly detected or set. Furthermore, as a result of comparing the detection results of both systems, if there is a difference between the detection results of the two systems, for example, a warning light is turned on or a character string indicating that a failure has occurred is displayed on the display. There may be a failure notification function.

The third embodiment has been described above.
As described above, according to the present invention, in a multi-system such as a dual system, the number and arrangement order of devices are detected independently for each system, and the detection results are compared between the first system and the second system. In each data processing apparatus, it is possible to automatically detect a fault location, display a location where a fault may have occurred, and perform quick repair work.

[Fourth Embodiment]
In the first to third embodiments described above, the data processing device 990 connected to the relay device 2 via the branch line transmission line 99 detects the position and arrangement order in the composition. 2 itself may need to detect the position (car number) and arrangement order of its own device.

  Therefore, in the fourth embodiment, as shown in FIG. 9, the data relay unit 3 is provided with a fourth port (port (4)), and the port (4) is connected to the relay processing control unit 5 via the internal transmission line 995. Connect. The relay processing control unit 5 has a function of setting the setting values necessary for initialization and relay of the relay device 2 including the data relay unit 3 in the data relay unit 3 and the data distribution unit 4. Such a function can be realized, for example, by using an MII interface mounted on KS8995MA, which is a switching device manufactured by MICREL (a configuration described in the System Level Applications section of the data sheet).

  In the operation of this embodiment, the port (3) is the port (4), the branch transmission line 99 is the internal transmission line 995, and the data processing device 990 is the relay process control unit 5 in the first and second embodiments. Replace, use information for specifying the transmission direction to the main transmission line or branch transmission line, for example, a location confirmation packet including a certain destination IP address (a value different from the value in the first and second embodiments) Then, it can implement in the procedure similar to FIGS. 3-6 of 1st and 2nd embodiment.

  Further, the information on the position and arrangement order detected in the above-described procedure, for example, the values such as P, Q, P + 1, Q + 1, and P + Q + 1 in the first and second embodiments are mounted on each detected relay apparatus 2. Each relay device 2 can be displayed on an indicator such as a light emitting diode (LED) or a liquid crystal display (LCD) so that an operator who maintains the relay device 2 visually observes the indicator from the outside. It may be possible to confirm whether or not it is correctly detected or set.

The fourth embodiment has been described above.
As described above, in the present invention, each relay device 2 can autonomously detect the number of vehicles in the train and the position of the own device (corresponding to the car number).

  Also, even when multiple trains are combined or divided and the number of devices in the train is changed, each relay device 2 autonomously detects the changed configuration, that is, the position of its own device in the train. can do.

[Fifth Embodiment]
In the information transmission system targeted by the present invention, the data processing device 990 operates such as a data processing device that controls a train traveling function such as an electric motor and a brake, and a data processing device that controls functions other than the train traveling such as an air conditioner and an interior light. There is a possibility that a plurality of types of data processing apparatuses having different functions are mixed. The plurality of types of data processing apparatuses need to detect the position and arrangement order of the respective apparatuses for each type.

  Therefore, in the first to third embodiments described above, the position confirmation packet and the second position confirmation packet are defined for each type of the data processing device 990, and the same type is used by the method described in the first to third embodiments. The position confirmation packet and the second position confirmation packet may be transmitted and received between the data processing apparatuses.

  For example, a data processing device corresponding to an inverter device that controls an electric motor sets the destination IP address of a position confirmation packet for the inverter device to “239.0.0.1”, and data corresponding to a brake control device that controls a brake. The processing device sets the destination IP address of the position confirmation packet for the brake control device to “239.0.0.3”. Further, all the relay apparatuses 2 have the destination IP address “239.0.0.1” (the destination MAC address is “01-00-5E-00-00-01”) and the destination IP address “239.0.0”. .3 ”(destination MAC address is“ 01-00-5E-00-00-03 ”) is set to be relayed to ports (2) and (3). That is, when packets with destination IP addresses “239.0.0.1” and “239.0.0.3” are received from port (1), they are relayed to ports (2) and (3), and port (2) Is set to relay only to the port (3) when received from the port, and to only the port (2) when received from the port (3). If a location confirmation packet having a destination IP address corresponding to a type is selected and received, each type of data processing device is independently arranged for each type according to the procedure described in the first embodiment. Can be detected.

  Further, the data processing device corresponding to the inverter device that controls the motor is equivalent to a brake control device that controls the brake by setting the destination IP address of the second position confirmation packet for the inverter device to “239.0.0.2”. The data processing apparatus sets the destination IP address of the second position confirmation packet for the brake control apparatus to “239.0.0.4”, and all the relay apparatuses 2 have the destination IP address “239.0.0.2”. (Destination MAC address is “01-00-5E-00-00-02”) and destination IP address “239.0.0.4” (destination MAC address is “01-00-5E-00-00-04”) )) Packets are set to be relayed to ports (1) and (3), ie, destination IP addresses “239.0.0.2” and “239.0.0.4” When a packet is received from port (1), it is relayed only to port (3), when it is received from port (2), it is relayed to ports (1) and (3), and when it is received from port (3), only port (1) is relayed If the data processing device 990 selects and receives the second location confirmation packet having the destination IP address transmitted by itself, the data processing device 990 performs each type of transmission according to the procedure described in the second embodiment. The number of data processing devices of the same type as the own device, the position of the own device, and the order of arrangement can be detected independently for each type of data processing device.

  In addition, if the main transmission line 9 and the branch transmission line 99 and the relay apparatus 2 are multiplexed, each type of data processing apparatus is independent for each type according to the procedure described in the third embodiment. The number and order of processing devices can be detected independently for each system, and the failure location can be detected by comparing the detection results between the systems.

The fifth embodiment has been described above.
As described above, according to the present invention, in addition to the effects of the first to third embodiments, a plurality of types of data processing devices are independently provided for each type, and the position of the data processing device for each type The arrangement order can be detected.

[Sixth Embodiment]
In the above-described first to fifth embodiments, each vehicle is connected, and the trunk transmission line 9 that connects the adjacent relay devices 2 is assumed to be a wired transmission line, but as shown in FIG. The main transmission line 9 can also be a mixed configuration of a wireless transmission line and a wired transmission line.

  That is, in the example in FIG. 10, the vehicle A11, the vehicle group B12, and the vehicle C13 constitute one formation, the vehicle A11 and the vehicle C13 are composed of one vehicle, and the vehicle group B12 connects a plurality of vehicles. The trunk transmission line 9 between the vehicle A11 and the vehicle group B12 is configured by a wireless transmission path, the trunk transmission path 9 between the plurality of vehicles 1 belonging to the vehicle group B is configured by a wired transmission path, and the vehicle group B12. The main transmission line 9 between the vehicle C13 and the vehicle C13 is a wireless transmission line.

  As shown in FIG. 10, in the front and rear portions of the vehicle A, the vehicle group B, and the vehicle C, the wireless device 93 and the antenna device 930 are connected to the relay device 2, and the data output from the relay device 2 is transmitted to the wireless device. The radio signal is converted into a radio signal at 93 and transmitted from the antenna apparatus 930 to the radio transmission path, and the radio signal received by the antenna apparatus 930 from the radio transmission path is input to the relay apparatus 2 at the radio apparatus 93 in the adjacent vehicle. The data is input to the relay device 2. The antenna device 930 has a characteristic of transmitting and receiving radio waves only in a certain direction, and may be one antenna or a plurality of antennas arranged in an array.

  The operations of the other devices and the data processing procedure are the same as those in the first to fifth embodiments.

  The wireless system used as the wireless transmission path is not limited, but a wireless LAN such as the IEEE 802.11 standard, the IEEE 802.15 standard, the IEEE 802.16 standard or the like may be used, and the wireless system used in a mobile phone or the like. May be used, or a radio system such as train radio or DSRC that is assumed to be used in railways or automobiles may be used.

  Note that, in the case of a wireless transmission path unlike a wired transmission path, if there are multiple vehicles in the same direction, the antenna device 930 receives a radio signal directly not only from an adjacent vehicle but also from a distant vehicle beyond the adjacent vehicle. As a result, the data processing apparatus may erroneously detect the order of arrangement. For example, in the example of FIG. 10, since the vehicle group B12 and the vehicle A11 are present in front of the vehicle C13, the signal transmitted by the vehicle A11 directly reaches the signal relayed from the vehicle group B12 and the vehicle A11. There is a possibility that the vehicle C13 receives the two signals. At this time, the data processing device 990 of the vehicle C13 counts the data from the vehicle A11 redundantly, so the data processing device 990 installed in the vehicle A11 erroneously detects the arrangement order. Therefore, each data processing apparatus transmits a different signal as a position confirmation packet, and the radio apparatus 93 of each vehicle first receives a plurality of the same position confirmation packets when the transmission source data processing apparatus receives a plurality of the same position confirmation packets. Only the received packet is output to the relay device 2, and the later received packet is discarded, or only the packet with the strongest received radio wave intensity (the packet with the shortest distance from the vehicle that transmitted the signal) is output to the relay device 2. In addition, erroneous detection can be avoided by a method such as discarding other packets.

The sixth embodiment has been described above.
As described above, in the present invention, when a plurality of vehicles are combined or divided by replacing the main transmission line 9 with a wireless transmission line, the transmission line is connected each time if it is a wired transmission line. However, if it is a wireless transmission path, it is not necessary, and vehicles and vehicle groups connected via the wireless transmission path do not necessarily need to be physically connected. The same effect can be obtained even if the vehicle is far away from the vehicle, so that even if the order is changed during driving, the new order can be grasped by re-detecting the order in each case. .

  Therefore, according to the present embodiment, the present invention can be applied not only to a railway vehicle but also to a moving body such as an automobile, a bus, a ship, or an airplane that travels side by side in the same direction without being connected to a plurality of vehicles. .

[Seventh Embodiment]
In the first to sixth embodiments described above, as shown in FIG. 12, the display device 8 is connected to one place or a plurality of places on the main transmission line 9, and the display device 8 determines the position and number of the data processing device 990. It can be detected and displayed.

  That is, the display device 8 receives the position confirmation packet and the second position confirmation packet as shown in FIGS. 4 and 6, and detects the values “P” and “Q” described in the first and second embodiments. Then, the position and number of data processing devices are displayed on the display device 8.

  Further, the position and number of data processing devices can be displayed on the display device 8 for each type of data processing device by the method described in the fifth embodiment.

  As shown in FIG. 13, the configuration example of the display device 8 includes a CPU 2 that detects the number of location confirmation packets and second location confirmation packets, a cache memory, a main storage memory, and the like, and a transmission / reception data. Or a location confirmation packet or second location confirmation from a storage device 2803 such as a hard disk, a silicon disk, or a nonvolatile memory that stores processing programs, initial setting information, log information, and the like, and the trunk transmission line 9 or the branch transmission line 99. A transmission path interface device 2801 having a function of receiving a packet and an output device 2805 such as a light emitting diode (LED) or a liquid crystal display (LCD) for displaying the detection result are provided. Input devices 2 such as switches and keyboards for inputting initial setting items such as road operation modes 04 may be the implementation.

  Further, as shown in FIG. 14, the display device 8 may be connected to the branch line transmission line 99 in the same manner as other data processing devices 990. However, when the display device 8 is connected to the branch transmission line 99, the data distribution unit 4 in the relay device 2 transmits the position confirmation packet and the second position confirmation packet transmitted from the connected data processing device 990 to the data relay. It is necessary to relay to both the unit 3 and the display device 8.

The seventh embodiment has been described above.
As described above, in the present invention, the position and number of the data processing device 990 can be confirmed by the display device 8. If the display device 8 is installed in a driver's cab or a vehicle cabin, even if the composition of the train is changed due to the combination or division of the vehicle, it is possible to easily check the connection of the data processing device. .

DESCRIPTION OF SYMBOLS 1, 11, 13 Vehicle 2, 21, 22 Relay apparatus 3 Data relay part 4 Data distribution part 5 Relay processing control part 8 Display apparatus 9, 91, 92 Trunk transmission line 12 Vehicle group 93 Radio | wireless apparatus 99, 991, 992 Branch line transmission Route 301, 302 Location confirmation packet 930 Antenna device 990 Data processing device 995 Internal transmission path 2000, 2800 Arithmetic unit 2001 Trunk transmission line interface device 2002 Branch transmission line interface device 2003, 2803 Storage device 2004, 2804 Input device 2005, 2805 Output device 2801 Transmission path interface devices 9001 to 9015

Claims (14)

In an information transmission apparatus for a railway vehicle that performs data transmission between the railway cars of a train set composed of a plurality of railway cars,
A relay device that is connected to a relay device of an adjacent vehicle via a trunk transmission line and performs a relay process of data received from the adjacent vehicle;
A data processing device connected to the relay device via a branch transmission line,
When the data processing apparatus outputs data including transmission direction information to the relay apparatus, the relay apparatus transmits the data in the transmission direction included in the data received from the branch transmission line or the main transmission line. Means for determining a relay direction of the data according to information;
The information processing apparatus, wherein the data processing apparatus detects the number of the data processing apparatus connected from the end of the train set based on the number of data received from the relay apparatus. The information transmission apparatus according to claim 1,
The information transmission apparatus according to claim 1, wherein the transmission direction information including the data is an address indicating a destination of the data . In the information transmission device according to claim 1 or 2 ,
The data processing device includes:
Output multiple types of data with different transmission direction information to the relay device,
Based on the number of the data of each type received from the relay device, the number of the own device connected from the end of the composition is detected, and the total number of the data processing devices connected in the composition is detected. An information transmission device. In the information transmission device according to any one of claims 1 to 3 ,
The trunk transmission line and the relay device are configured in a multiplex system,
The data processing device includes:
Output the data containing the information of the transmission direction to the relay device of each system,
The data is received from the relay device of each system, the number of received data is detected for each system, and when the detected number of data is different between the systems, the trunk transmission line or the An information transmission device that judges that an abnormality has occurred in a branch transmission line . In the information transmission method and apparatus according to any one of claims 1 to 4 ,
The data processing device includes a plurality of types of data processing devices having different functions, the data processing device transmits data to a relay device, and the data includes information designating a transmission direction, and the data processing device for each of the types, the information transmission device information for designating the transmission direction characterized by different of Rukoto. In the information transmission method and apparatus of Claim 1 or Claim 5 ,
The data processing apparatus or the relay apparatus includes an information transmission apparatus having display means for detecting at least a position and an arrangement order of the apparatus and displaying the detection result . In the information transmission method and apparatus of Claim 1 or Claim 5 ,
The information transmission apparatus according to claim 1, wherein the transmission path is composed of one or both of a wireless transmission path and a wired transmission path . In the information transmission method and apparatus of Claim 1 or Claim 5 ,
The Connect display device in the transmission path, the information transmission device according to claim Rukoto to display the location and number of the data processing device. In the train having the information transmission device according to any one of claims 1 to 8 ,
Each railway vehicle constituting the train has at least the relay device and the data processing device . A relay device connected to a relay device mounted on an adjacent vehicle via a trunk transmission line and performing a relay process of data received from the adjacent vehicle;
A data processing device connected to the relay device via a branch transmission line,
In the information transmission method for performing data transmission between the railway vehicles of the train set composed of a plurality of rail vehicles,
Data including transmission direction information is output from the data processing device to the relay device;
The relay device that has received the data determines a relay direction of the data according to transmission direction information included in the data;
The information processing method comprising: the data processing device that has received the data detecting a position of the own device in the train according to the number of times the data is received . The information transmission method according to claim 10,
The data processing apparatus that has received the data detects the position of the own apparatus in the train according to the number of times the data is received, and the own apparatus determines the number obtained by adding 1 to the number of times the data is received. information transmission method characterized that you determines that the connection position of the terminal. In the information transmission method of Claim 10 or Claim 11,
A plurality of types of data each including information on different transmission directions are output from the data processing device to the relay device; and
The relay device that has received a plurality of types of data determines a relay direction for each of the data in accordance with transmission direction information included in the plurality of types of data;
The data processing device that has received a plurality of types of data detects the number of the own device connected from the end of knitting according to the number of times each of the plurality of types of data is received, and is connected within the knitting. information transmission method according to claim Rukoto comprising the steps, a to detect the total number of the data processing device. It claim 1 0 in the information transmission method according to claim 12,
The trunk transmission line and the relay device are configured in a multiplex system,
Data including transmission direction information is output from the data processing device to the relay device of each system;
The relay device of each system that has received the data determines a relay direction of the data according to transmission direction information included in the data;
The data processing device that has received the data detects the number of times the data has been received for each system, and when the number of detected data differs between the systems, the main transmission line or the branch transmission line information transmission method characterized that you determined that an abnormality has occurred in. The information transmission method according to any one of claims 1 0 to Claim 13,
An information transmission method , comprising: displaying information on a position of the own device in the train train detected on a display device .