JP2016052150A - Transmission control system and transmission control device for use in teh same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transmission control system which performs the setting of vehicle organization information by its own motion in a short time as much as possible, and a transmission control device for use in the same.SOLUTION: In a transmission control system 100 to which a plurality of transmission control devices 1 are continuously connected, a transmission control device 1M becoming a master following a prescribed state such as, for example, a state that the transmission control device is located at a first end of a vehicle organization is decided out of a plurality of the transmission control devices 1. Next, transmission functions of communication parts H2, H3 of a transmission control device 1S other than the transmission control device 1M which becomes the master are stopped. Information which is transmitted to the transmission control system 100 is not thereby relayed. The transmission control device 1M which becomes the master makes the adjacent transmission control device 1S sequentially set identification information, and the transmission control device 1S which is set with the identification information restores the transmission functions of the communication parts H2, H3.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a transmission control system and a transmission control apparatus used therefor.

  In order to appropriately drive each vehicle constituting a vehicle organization composed of a group of vehicles, it is necessary to collect and control information on devices mounted on each vehicle. For this purpose, individual identification information is set for each device, and each device is networked using this identification information. In addition, in order to properly control the equipment of each vehicle, it is necessary to know the vehicle number that means the numbered vehicle in which the equipment is mounted.

  In order to network the equipment mounted on the vehicles that make up the vehicle organization, the identification information of each device connected to the network and the equipment mounted on the vehicle to set the master device that controls the network It is necessary to set a switch to be identified.

  When a bus-type stub connection network is used as the network configuration, the terminal is connected in parallel to the signal line, and the order relationship of the front and rear connections cannot be seen, so the adjacent vehicle is distinguished from the network signal line. Neighboring confirmation lines were necessary. By using this adjacency confirmation line, for example, a command is sent from the master device arranged in the end vehicle to the adjacent vehicle, and only the device arranged in that vehicle responds to the broadcast packet from the master device. The identification number of each device was set by recognizing the car number in order.

  When configuring a network with only signal lines without using this adjacency confirmation line, there is a method in which a router is installed in each vehicle to form an individual network for each vehicle, and the routers are connected in cascade (cascade connection). . In this way, the terminal can collect information on neighboring vehicles. By transmitting the information to all routers in the composition, each terminal can set the composition of the entire composition. However, since the processing time of the router is required, a high-speed router is required to increase the transmission speed, leading to an increase in cost.

  In order to network the devices mounted on the vehicle, it is necessary to set identification information for identifying each device. An IP (Internet Protocol) address is automatically set as identification information necessary for a vehicle organization network without using an adjacent confirmation line or a router (see Patent Documents 1 and 2). In Patent Document 1, a relay device communicates with an adjacent vehicle, uses an IP address to represent the arrangement order of the own device and the direction of data, and performs processing by software.

  In Patent Document 2, a DHCP server is prepared for IP address allocation, and dynamic address management is performed by software processing. In general, when processing is performed by software, processing time is required. An example in which an L2 switch is used to improve the processing speed delay associated with the software processing is disclosed in Patent Document 3 (see Patent Document 3).

  There has been a problem of erroneous setting in manual setting of identification information for each device that has been performed conventionally. In addition, when automatic setting processing for avoiding erroneous setting is performed by software, processing time is required, which is an obstacle to vehicle control.

JP2013-102624A JP-A-10-276217 JP 2011-205777 A

  In order to avoid erroneous settings, it is required to automatically set the vehicle organization information as much as possible. In addition, in order to use the vehicle organization network for control, it is desired to set the vehicle organization information in a short time. In view of this, the inventors have performed a transmission control system for automatically setting vehicle information necessary for vehicle composition in as short a time as possible and for automatically setting the vehicle information for the purpose of avoiding a time delay in device control, and the transmission control system used for this. A transmission control device was developed. As a result, the invention of the transmission control system of the present application and the transmission control device used therein has been completed.

  It is an object of the present invention to provide a transmission control system that automatically sets vehicle composition information in as short a time as possible and a transmission control device used therefor.

  The invention described in claim 1, which has been made to solve the above-described problem, includes a transmission control device having at least two communication units, and at least one transmission control device installed in each of a plurality of vehicles. A transmission control system in which identification information for identifying the arrangement order of the transmission control device and a vehicle on which the transmission control device is placed is sequentially set in each of the plurality of transmission control devices, Among the transmission control devices, a transmission control device to be a master is determined according to a connection state with other transmission control devices and predetermined conditions, and the transmission control devices other than the master transmission control device The transmission control device as the master causes the transmission control device adjacent to itself to sequentially set the identification information, and the identification information is Constant has been transmitted control device to restore the transmission function of the communication unit, a transmission control system, characterized in that.

  In a transmission control system in which a plurality of transmission control devices are connected in cascade, from among the plurality of transmission control devices, it can be identified from the connection state with other transmission control devices whether it is at the end of the vehicle formation, In addition, the master transmission control device is determined according to predetermined conditions. Next, the transmission function of the communication unit of the transmission control device other than the master transmission control device is stopped. This prevents information transmitted to the transmission control system from being relayed. Then, the transmission control device that becomes the master sequentially sets identification information from adjacent transmission control devices, and the transmission control device to which the identification information is set restores the transmission function of the communication unit. Therefore, it is possible to sequentially set identification information in transmission control apparatuses other than the master without specifying a destination from the master transmission control apparatus.

  According to a second aspect of the present invention, in the first aspect of the present invention, as the predetermined condition, an end code indicating which of the two ends in the vehicle is placed and a unique number of the vehicle. The transmission control device serving as the master is determined based on one of certain vehicle numbers.

  The transmission control device to be a master is determined based on attributes such as an end part code indicating which of the both ends of the vehicle is placed and a vehicle number that is a unique number of the vehicle. For example, it can be determined by the presence / absence of connection with another transmission control device, the end code such as 1st or 2nd, or the comparison of vehicle numbers.

  The invention described in claim 3 is the invention described in claim 1 or 2, wherein the transmission control device in which the identification information is set is connected to the master after restoring the transmission function of the communication unit. The information for setting the identification information transmitted from the transmission control device is relayed and transmitted to the adjacent transmission control device.

  The communication unit that has recovered the transmission function relays information transmitted from the transmission control apparatus that becomes the master for setting the identification information of other transmission control apparatuses.

  The invention described in claim 4 includes a first communication unit and a second communication unit that transmit and receive signals to and from other different transmission control devices, each having a unique vehicle number, A transmission control device installed in a vehicle in which identification information for identifying the arrangement order of the vehicle and the vehicle on which the vehicle is placed is set based on the vehicle number of the vehicle on which the vehicle is placed and both ends in the vehicle And at least one of the end codes indicating where it is placed, the vehicle number of the vehicle on which the other transmission control device is placed, and the end indicating which of the both ends in the vehicle is placed A determination unit that determines whether or not to set itself as a master based on at least one of the codes, and when the determination result of the determination unit becomes the master, the identification information of the device is set later, When the identification information setting request information is transmitted to the other transmission control device and is not determined as the master, the transmission functions of the first and second communication units are stopped, and the identification information setting request is transmitted. A communication control unit that receives information and sets the identification information of itself based on the setting request information of the identification information, and then restores the transmission function of the first and second communication units. This is a featured transmission control apparatus.

  The present invention is a transmission control device installed in a vehicle having a unique vehicle number, including first and second communication units that transmit and receive signals to and from a communication unit of another transmission control device other than itself. In this transmission control device, the determination unit is provided with a vehicle number in which the determination unit is placed and an end code indicating where the determination unit is placed at both ends in the vehicle, and a vehicle number and a communication unit of another transmission control device. Based on the end code indicating the position of the vehicle, it is determined whether or not to make itself a master. Then, when the determination result of the determination unit becomes the master, the communication control unit sets its own identification information, then transmits identification information setting request information to another transmission control device, and determines that it is the master. If not, the transmission function of the first and second communication units is stopped, the identification information setting request information is received, and the identification information is set based on the identification information setting request information. The transmission function of the first and second communication units is restored.

  The invention described in claim 5 is the invention described in claim 4, wherein the determination unit is connected to another transmission control device out of the first communication unit and the second communication unit. When there is no communication unit that is not detected, it is determined that the master is not used as the master.

  The determination unit can determine that it is not at the end of the vehicle when there is no communication unit in which connection with another transmission control device is not detected among the two communication units. Therefore, in this case, it is possible to remove a transmission control apparatus that is not placed at the end from the master candidates by determining that the master is not used.

  In the invention described in claim 6, in the invention described in claim 5, when the communication control unit includes the communication unit that is not detected to be connected to the other transmission control device, the transmission control unit performs other transmission control. Other transmission control of the end point notification information including that there is the communication unit that is not detected to be connected to the apparatus, the vehicle number of the own device, and the end code indicating the end on the side where the communication unit is detected It transmits to an apparatus.

  In order to notify the other transmission control device that it is the end of the vehicle organization, the communication control unit communicates with another transmission control device when there is a communication unit that is not detected to be connected to the other transmission control device. End point notification information including that there is a communication unit in which connection is not detected and its own vehicle number and an end code indicating the end on which the communication unit is detected is transmitted.

  The invention described in claim 7 is the invention described in any one of claims 4 to 6, wherein the communication control unit sets its identification information when it is determined as the master. Later, after transmitting the identification information setting start information, the identification information setting request information is transmitted to the other transmission control device. When the identification information setting start information is not determined, the identification information setting start information is received. The transmission functions of the first and second communication units are stopped.

  If it is determined to be the master, it will lead the identification information setting operation of the other transmission control device, and if it is not determined to be the master, it will stop the transmission function of the communication unit and block the relay of various information Wait for reception of identification information setting start information from the master.

  The invention described in claim 8 is the invention described in any one of claims 4 to 7, wherein when the communication control unit is not determined to be the master, the first and second communication units After the transmission function is restored, response information indicating completion of the identification information setting is transmitted to the master.

  When it is not determined as the master, the transmission function of the communication unit is restored and the master is notified of the completion of the setting of the identification information.

  The invention described in claim 9 is the invention described in claim 8, wherein the communication control unit is not determined to be the master, and among the first communication unit and the second communication unit. When there is a communication unit in which a connection with another transmission control device is not detected, the response information is transmitted to the master as final response information indicating that the setting of the identification information of all the transmission control devices has been completed. It is characterized by this.

  If there is a communication unit that is not determined to be a master and does not detect a connection with another transmission control device among the first communication unit and the second communication unit, the identification information is set last. It is determined as a transmission control device, and is transmitted to the master as final response information indicating that the setting of identification information has been completed.

  A tenth aspect of the invention is the invention according to any one of the fourth to ninth aspects, further comprising bypass means for connecting the first communication unit and the second communication unit to transmit information. It is characterized by this.

  When the transmission control device is inoperable, the first communication unit and the second communication unit are directly connected to transmit information. The bypass means is preferably a mechanical device such as a relay.

  According to the first aspect of the present invention, at least the transmission control device at the end of the vehicle formation is connected to another transmission control device as a master, and the master transmission control device is another transmission control device. It can lead the control of the setting of identification information. In addition, by stopping the transmission function of the communication unit other than the master transmission control device and restoring the transmission function after setting the identification information, the master and the transmission control device for setting the identification information are not clearly indicated. The identification information can be set in order from the transmission control device closest to the transmission control device. Therefore, it is possible to improve the efficiency of setting identification information for each transmission control device. In addition, the adjoining confirmation line is not required and the number of outfitting lines is reduced, so that the weight can be reduced.

  According to the second aspect of the present invention, it is possible to determine which side of the end portion is located from the end portion code indicating which of the both ends of the vehicle is placed. Further, by comparing the vehicle numbers, one of the transmission control devices placed at the two ends can be selected as a master. That is, it is possible to clearly determine which of the two transmission control devices placed at the end of the vehicle formation is the master transmission control device.

  According to the third aspect of the present invention, the relay function is restored in order from the transmission control device for which the identification information has been set, and the transmission control device to which no identification information is set is transmitted from the master transmission control device. The information concerning the identification information setting to be transmitted can be transmitted. Therefore, the setting work in all the transmission control devices in the vehicle organization is performed without omission.

  According to the invention described in claim 4, it can be determined by the determination unit whether or not it is a master. In addition, the communication control unit can lead the control of setting the identification information of other transmission control devices in the case of the master, and in the case of other than the master, the transmission function of the communication unit is set until the setting of its own identification information. By stopping, it is possible to prevent the identification information from being set by mistake other than itself. In other words, the identification information can be set in order from the transmission control device closer to the master without clearly indicating the transmission control device for setting the identification information. Therefore, the transmission control device to be the master is always determined, and unnecessary information exchange between the master transmission control device and the other transmission control devices is reduced, so that the setting work in each transmission control device can be made more efficient.

  According to the fifth aspect of the present invention, it can be determined that the vehicle is not at the end of the vehicle, and the device can be excluded from the master candidates.

  According to the invention described in claim 6, the transmission control devices at both ends of the vehicle formation can notify each other as the end point notification information. Therefore, when the end is a master, it can be easily determined which of the two ends is the master.

  According to the seventh aspect of the invention, the stop timing of the transmission function of the first and second communication units can be specified by the identification information setting start information.

  According to the eighth aspect of the invention, the response control information indicating completion of identification information setting allows the master transmission control apparatus to know that identification information setting has been completed. Therefore, the master transmission control device can perform the setting operation of the identification information of the next transmission control device.

  According to the invention described in claim 9, the transmission control device as the master can know that the setting of the identification information of all the transmission control devices has been completed. Therefore, the normal operation can be performed thereafter.

  According to the invention described in claim 10, when the transmission control apparatus cannot operate normally, the transmission control system is down due to a failure of the transmission control apparatus since the bypass means for connecting the first and second communication units is provided. Can be avoided.

It is a block diagram of the transmission control apparatus used for the transmission control system concerning the 1st Embodiment of this invention. It is explanatory drawing of the IP address system based on IEC61375. It is explanatory drawing of the state (0)-state (2) which shows progress of the setting operation | work when one transmission control apparatus is placed in 1 vehicle. It is explanatory drawing of the state (3)-state (5) which shows progress of the setting operation | work when one transmission control apparatus is placed in 1 vehicle. It is explanatory drawing of the state (6)-state (8) which shows progress of the setting operation | work when one transmission control apparatus is placed in 1 vehicle. It is explanatory drawing of the state (9)-state (11) which shows progress of the setting operation | work when one transmission control apparatus is placed in 1 vehicle. It is a state transition diagram of the transmission control apparatus which has a communication part. It is a state transition diagram of the transmission control apparatus which has a communication part located in the edge part of vehicle organization. It is a state transition diagram of the transmission control apparatus which has a communication part located in the intermediate part of vehicle organization. It is explanatory drawing of the state (0)-state (3) which shows progress of the setting operation | work when two transmission control apparatuses are placed in 1 vehicle concerning the 2nd Embodiment of this invention. It is explanatory drawing of the state (4)-state (7) which shows progress of the setting operation | work when two transmission control apparatuses are placed in 1 vehicle. It is explanatory drawing of the state (8)-state (9) which shows progress of the setting operation | work when two transmission control apparatuses are placed in 1 vehicle. It is explanatory drawing of the state (0) -state (2) which shows progress of the setting operation | work when two transmission control apparatuses are placed in 1 vehicle concerning the 3rd Embodiment of this invention, and a vehicle is couple | bonded. It is explanatory drawing of the state (3)-state (5) which shows advancing of the setting operation | work when two transmission control apparatuses are placed in 1 vehicle and a vehicle is couple | bonded. It is explanatory drawing of the state (6) -state (8) which shows progress of the setting operation | work when two transmission control apparatuses are placed in 1 vehicle and a vehicle is couple | bonded. It is explanatory drawing of the state (9) -state (11) which shows advancing of the setting operation | work when two transmission control apparatuses are placed in 1 vehicle and a vehicle is couple | bonded. It is explanatory drawing of the state (12)-state (13) which shows advancing of the setting operation | work when two transmission control apparatuses are placed in 1 vehicle and a vehicle is couple | bonded.

(First embodiment)
Hereinafter, the content of the invention applied to a railway vehicle as a first embodiment of the present invention will be described in detail with reference to FIGS. 1 to 9. FIG. 1 is a configuration diagram of a transmission control apparatus 1 according to the first embodiment of the present invention. It is mainly composed of a switching hub (Hub) 2 and a router 3. The switching hub 2 includes at least ports H1, H2, and H3 as a communication unit that performs communication with the outside. The communication unit H1 is connected to the router 3 connected to various devices mounted on the vehicle. The communication unit H2 is a trunk line port A, and the communication unit H3 is a trunk port B. Control of transmission / reception stop and recovery is possible. That is, the trunk ports A and B function as a first communication unit and a second communication unit. The trunk ports A and B can be connected by a relay (bypass relay) 4 which is a bypass means. When the transmission control device fails, the relay 4 is closed and the trunk port A (communication unit H2) and the trunk port B (communication unit H3) are directly connected to each other, thereby affecting the influence of the failure of the transmission control device 1. Prevents the network from going down.

  The router 3 is controlled by, for example, built-in software, and information such as a position indicating a place where a transmission control device such as a vehicle type, first place, second place, etc. is placed and a vehicle number are set from the outside. The router is connected to the communication unit H1 of the switching hub 2 through the connection unit R1, and exchanges main signals. A control communication line for controlling the operation of the switching hub 2 by the router 3 is provided between the switching hub 2 and the router 3. The router 3 recognizes the presence / absence of the adjacent transmission control device 1 via the H2 port and the H3 port of the switching hub 2. Further, it is possible to recognize the other router 3 (other transmission control device 1) via the trunk line (communication line connected to the trunk line ports A and B) and recognize the configuration of the entire organization. That is, the router 3 functions as a determination unit and a communication control unit. Further, it is possible to further increase the speed by determining the presence or absence of the adjacent transmission control device 1 and performing a transmission function stoppage and recovery operation described later by hardware such as an ASIC (Application Specific Integrated Circuit) incorporated in the switching hub 2. Can be planned. That is, the switching hub 2 may function as a determination unit and a communication control unit.

  The connection part R2 of the router 3 becomes a branch port C which is a communication part with the outside of the transmission control device 1, and is connected to various devices installed in the vehicle. As the identification information of various devices, for example, the IP address is converted by the router 3 and exchanged with the trunk port, so that the address setting of the terminal on the branch line side of each vehicle can be made common.

  In order to connect various devices including the transmission control apparatus 1 to the network, it is easy to use an IP address as network identification information, and versatility can be increased. IEC61375 has been established as an example of how to assign an IP address in a railway vehicle (see FIG. 2). In the following embodiment, an IP address conforming to IEC 61375 is set.

  The lower side of FIG. 2 is a legend, and the upper side is a setting example when the encoding system is ECN, the organization ID is 1, and the vehicle ID is 0. The third bit from the left in FIG. 2 indicates one of the coding system types (ECN or ETB). Since this example is ECN, 0 is set. The purpose of using the IP address is set for 2 bits indicated by b below. Here, since it is a TCMS (Train Control and Monitoring System), 0 is set.

  The next 6 bits indicated by S are used for an organization ID or the like, and organization ID = 1 is set here. The next 1 bit indicated by V indicates the selection of the 1 system or 2 system in the duplex system in preparation for a failure. The next 5 bits indicated by C indicate the vehicle ID, and the next 8 bits indicated by h indicate the position indicating the position in the vehicle and the device ID. The vehicle ID is information necessary for setting the initial value of the IP address, and the same value may be set for each vehicle. In addition, when a some vehicle is connected (when there exists a some transmission control apparatus 1), it changes into an appropriate IP address by the method mentioned later.

  Next, setting of identification information when one transmission control device 1 is placed on a vehicle will be described with reference to FIGS. In the state (0) to the state (2), one transmission control device 1 is placed in each frame surrounded by an outer frame indicating three vehicles (b, b, c). The state (0) indicates an initial state, the vehicles are not connected to each other, and the communication units of the transmission control device 1 are not connected to each other. In this state, each transmission control device 1 is a master transmission control device.

  In the initial state, each transmission control device 1 is set to organization number 1 and vehicle number 0. Each vehicle is given a unique vehicle number. From the left, vehicle number = 0000, vehicle number = 1234, and vehicle number = 3210. The IP addresses of the transmission control device 1 are all 10.0.64.254, and the addresses of the ports (communication unit H1) connected to the router 3 (not shown) are all 192.168.0.254.

  Here, what is described as first place in the upper left of the frame and second place in the upper right is an end part code for identifying the end of the vehicle, which is one of the attributes of the communication part. Further, the leftmost vehicle in the figure is a vehicle a in which the first place is unconnected, the middle vehicle is a vehicle in which the first and second places are both connected, and the rightmost vehicle is a vehicle in which the second place is unconnected.

  Next, in the state (1), when the vehicle is coupled, the communication unit H2 of the transmission control device 1 and the communication unit H3 of the other transmission control device 1 are connected to become physically communicable and all The transmission control device 1 enters a slave state (a state controlled by a master described later). A transmission control system 100 according to an embodiment of the present invention is configured in a state in which a plurality of transmission control devices 1 as shown in FIG. 3 and the like are connected in cascade (cascade connection). When recognizing the presence of the adjacent transmission control device 1, each transmission control device 1 transmits an initialization request packet by broadcast after an appropriate waiting time of, for example, about 1 second in order to avoid an unstable state immediately after connection. An initialization request packet A is transmitted from the transmission control device 1 of the vehicle A, an initialization request packet B is transmitted from the transmission control device 1 of the vehicle B, and an initialization request packet C is transmitted from the transmission control device 1 of the vehicle C. The initialization request packet reaches all transmission control apparatuses 1 other than itself.

  In the state (2), when the transmission control device 1 of each vehicle receives the initialization request packet from the other transmission control device 1, it sets its own IP address to 0.0.0.0. At this time, the car number indicating the order in the vehicle organization is undecided. It expresses. In the present embodiment, the IP address is identification information for identifying the transmission control device 1, and the vehicle number is identification information for identifying the order of vehicles in which the transmission control device 1 is placed.

  Next, setting work will be described with reference to FIG. In the state (3), the transmission control device 1 for the vehicle A and the vehicle C located at the end of the vehicle formation has a communication part (H2 or H3) that does not recognize the other transmission control device 1, and therefore is at the end of the vehicle formation. I understand that. That is, the connection state with other transmission control devices 1 can be known. The transmission control devices 1 placed in the vehicles A and C stop the transmission / reception function of the communication unit that does not recognize the other transmission control devices 1, and the end point notification packet D, the vehicle The end point notification packet E is transmitted by broadcast from the transmission control device 1 placed in the network. This end point notification packet (end point notification information) includes position information (1st or 2nd place) where each vehicle number and a communication unit used for communication between vehicle formations not recognizing other transmission control devices 1 are placed. An end code is included. That is, it is an end code on the side where the other transmission control device 1 is not detected among the end codes indicating which of the both ends of the vehicle is placed. For example, the first place corresponds to the vehicle A, and the second place corresponds to the vehicle C.

  In the state (4), the transmission control device 1 placed on the leftmost vehicle A receives the end point notification packet E from the transmission control device 1 placed on the rightmost vehicle c. The transmission control device 1 placed in the rightmost vehicle C receives the end point notification packet D from the transmission control device 1 placed in the leftmost vehicle A.

  The transmission control device 1 placed in the vehicle A that has received the end point notification packet E reads the vehicle number (3210) in the end point notification packet E. This is compared with the vehicle number (0000) of the vehicle A on which it is placed, and it is determined whether or not it becomes a master that controls the setting of the identification information of the plurality of transmission control devices 1. When it is determined in advance that the smaller value is dominant and becomes the master, the transmission control device 1 placed in the vehicle A is dominant and the transmission control device 1 placed in the vehicle A is the master transmission control device (Train Master). ) Also, the user's own IP address is set to a predetermined 10.0.64.454. Thereafter, the master transmission control device is denoted by 1M, and the transmission control devices (slave transmission control devices) other than the master transmission control device 1M are denoted by 1S.

  Similar processing is also performed in the vehicle C, and the transmission control device 1S of the vehicle C having the vehicle number (3210) remains a slave and waits for a command from the master transmission control device 1M. In the present embodiment, the smaller vehicle number value has an advantage, but of course, the larger vehicle number may have an advantage. Moreover, you may determine based not on comparison of a vehicle number but on edge codes, such as 1st place and 2nd place.

  Next, in state (5), the master transmission control device 1M sets the vehicle number of the vehicle on which it is placed to 0 (vehicle number = 0) and broadcasts the vehicle number setting start packet F as identification information setting start information. Send. The other slave transmission control device 1S receives this packet F.

  In the state (6) of FIG. 5, the slave transmission control device 1S that has received the vehicle number setting start packet F stops the transmission function of the respective communication units (H2, H3).

  In the state (7), the master transmission control device 1M waits for a time (for example, 500 ms) until the slave transmission control device 1S stops the transmission function of the communication unit, and then the IP address 10 corresponding to the preset vehicle ID. .0.64.254, a vehicle number setting request packet G as setting request information including the vehicle number (0000) of the vehicle on which the vehicle is placed and the vehicle number number 0 set for the vehicle is broadcast. Since transmission is performed by broadcast, it can be received by all the transmission control devices 1S. However, since the transmission function of the communication unit is stopped in the state (6), it is directly connected to the master transmission control device 1M of the vehicle A. The vehicle number setting request packet G is not transmitted downstream from the slave transmission control device 1S of the vehicle.

  Receiving the vehicle number setting request packet G transmitted from the master transmission control device 1M, the slave transmission control device 1S of the vehicle B uses the vehicle number (0000) included in the vehicle number setting request packet G as its own vehicle number (1234). Compare with.

  In the state (8), since the vehicle control unit 1S compares the vehicle number and the vehicle number is different, the IP address included in the vehicle number setting request packet is set to a predetermined value (here, lower order). 1) is added to the second byte to make 10.0.65.254. Further, 1 is added to the car number 0 included in the sent car number setting request packet G to set its own car number number to 1. When all the settings in the own device are completed, the vehicle transmission control device 1S restores the transmission function of the communication unit and the vehicle number setting response packet H as response information indicating completion of identification information setting to the master transmission control device 1M. Send.

  In the state (9) of FIG. 6, the master transmission control device 1M that has received the vehicle number setting response packet H from the vehicle transmission control device 1S continues to set the IP address that has been set in the vehicle transmission control device 1S. 10. A vehicle number setting request packet I including the vehicle number (1234) of the vehicle B and the vehicle number 1 set to the vehicle B is transmitted by broadcast. That is, the vehicle number and IP address set immediately before are included in the vehicle number setting request packet for transmission.

  Since the transmission control device 1S in the vehicle has already been set, the vehicle number setting request packet I from the master transmission control device 1M is ignored. The vehicle number setting request packet I from the master transmission control device 1M has recovered the transmission function of the communication unit of the vehicle transmission control device 1S, so the vehicle number setting request packet I is relayed and transmitted to the adjacent vehicle C. It is transferred to the control device 1S.

  The transmission control device 1S of the vehicle C that has received the vehicle number setting request packet I for the first time uses the vehicle number (1234) contained in the vehicle number setting request packet I from the master transmission control device 1M of the vehicle A as its own vehicle number (3210). ).

  In the state (10), the transmission control device 1S for the vehicle C is different from the vehicle number from which its own vehicle number is sent by comparing the vehicle number included in the vehicle number setting request packet with its own vehicle number. 10. Add a predetermined value (in this case, 1 to the lower second byte) to the IP address 10.0.65.554 of the vehicle transmission control device included in the vehicle number setting request packet by adding its own IP address. It is set to 0.66.254. Further, 1 is added to the car number 1 included in the sent car number setting request packet I to set its own car number to 2.

  The transmission control device 1S for the vehicle C restores the transmission function of the communication unit when all the settings in the own device are completed. The vehicle C is an end vehicle, and since the transmission / reception function of the communication unit that does not recognize the other transmission control device 1 in the state (3) has been stopped, it is found that there is no downstream transmission control device 1S. Therefore, a vehicle number setting final response packet J as final response information indicating that the setting of identification information of all transmission control devices has been completed is transmitted to the master transmission control device 1M. The transmission control device 1S placed in the vehicle B transfers this vehicle number setting final response packet J to the master transmission control device 1M of the vehicle A, and the master transmission control device 1M receives the vehicle number setting final response packet J.

  In the state (11), the master transmission control device 1M that has received the vehicle number setting final response packet J transmits a vehicle number setting completion packet K by broadcast. In addition, the transmission / reception function of the communication unit that has been stopped is restored. This completes the setting work of the master transmission control device 1M. By recovering the transmission / reception function of the communication unit that has been stopped, it is possible to prepare for the combined operation of new vehicle formations at both ends of the vehicle formation.

  Upon receiving the vehicle number setting completion packet K, the transmission control device 1S for vehicle B and vehicle C ends the setting operation. Furthermore, the transmission control device 1S for the vehicle C recovers the transmission / reception function of the communication unit that has stopped the transmission / reception function. This transmission / reception function can be recovered in the same manner as described above, and a new vehicle composition can be prepared at the both ends of the vehicle composition.

  By operating as described above, the transmission control device 1M serving as a master sequentially transmits information (vehicle number setting request packet) for setting an IP address and a vehicle number from the transmission control device 1S adjacent to itself. Thus, the IP address and the vehicle number are set based on the vehicle number setting request packet received by the transmission control device 1S. In other words, the transmission control device 1M as a master sequentially sets identification information from the transmission control device 1S adjacent to itself.

  Next, the operation of the transmission control device 1 will be described with reference to the state transition diagrams shown in FIGS. First, in the initial state S1 immediately after the power is turned on, the connection of the other transmission control device 1 is not detected and is waiting for the connection.

  Then, when a connection to one of the other transmission control devices via one of the communication units (H2 or H3) is detected (LinkUp), the state transitions to state S4 (see FIG. 8).

  In state S4 of FIG. 8, an initialization request packet is transmitted (send init), and the state transitions to state S5.

  Next, in the state S5, as a result of receiving the initialization request packet, it is determined that the transmission control device 1 is located at the end of the vehicle formation because only the connection of one of the communication units H2 and H3 is detected. The end point notification packet is transmitted (send end), and the state transitions to state S6. That is, when there is a communication unit in which connection with another transmission control device 1 is not detected, there is a communication unit in which connection with another transmission control device 1 is not detected, and its own vehicle number and communication unit are placed. The end point notification information including the end code indicating the position of the vehicle is transmitted to the other transmission control device 1.

  Next, in state S6, based on the end point notification packet received from the transmission control device 1 other than itself, it is determined whether or not it is the master. That is, when there is a communication unit that does not detect a connection with another transmission control device 1 among the first communication unit and the second communication unit, it is determined whether or not to be a master. The determination of whether to become a master is not limited to the vehicle number in (4) of FIG. 4 described above, and may be determined with reference to end codes such as first and second. As a result of the determination, if it is determined to be a master, the process proceeds to state S7, and if it is determined to be a slave, the process proceeds to state S11. If an initialization request packet is received in state S6, the flow goes to state S5. Further, when the endpoint notification packet from the transmission control device 1 other than itself is not received for 10 seconds, the state transitions to the state S4 (Timeout).

  Next, in state S7, as shown in FIGS. 4 and 5 (4) to (7) above, after setting its own IP address and vehicle number, it transmits a vehicle number setting start packet. (Send start), transition to state S8.

  Next, in state S8, a vehicle number setting request packet is transmitted (send req), and the state transitions to state S9. That is, the vehicle number setting request packet is transmitted after the vehicle number setting start packet is transmitted.

  Next, in state S9, when a vehicle number setting response packet is received from the slave transmission control device 1, the state transitions to state S8, and when a vehicle number setting final response packet is received, the state transitions to state S10. If an initialization request packet is received in state S9, the flow goes to state S5. Further, when the vehicle number setting response packet, the vehicle number setting final response packet or the initialization request packet is not received for 3 seconds after the transition to the state S9, the state transitions to the state S4 (Timeout).

  Next, in state S10, a vehicle number setting completion packet is transmitted (send comp), and the state transitions to state S3 (see FIG. 7). After the transition to the state S3, the setting operation as the master is completed, and the subsequent operation in the steady state is performed.

  On the other hand, in the state S11, it waits for the reception of the vehicle number setting start packet as a slave, and when it is received (recv start), it transits to the state S12. In the state S11, when an initialization request packet is received, the flow goes to the state S5. If the vehicle number setting start packet is not received for 5 seconds after the transition to the state S11, the state transitions to the state S4 (Timeout).

  Next, in state S12, the transmission function of the communication unit is stopped (Tx port close), and the state transitions to state S13.

  Next, in the state S13, it waits for reception of the vehicle number setting request packet, and when it is received (recv req), it sets its own IP address and vehicle number as shown in (8) of FIG. To state S14. If the initialization request packet is received in the state S13, the flow goes to the state S5. If the vehicle number setting request packet is not received for 60 seconds after the transition to the state S13, the state transitions to the state S4 (Timeout).

  Next, in state S14, the transmission function of the communication unit is restored (Tx port open), and the state transitions to state S15.

  Next, in state S15, a vehicle number setting final response packet is transmitted (send last resp), and the state transitions to state S16. In the case of this state, since only one of the communication units H2 and H3 is detected for connection and is not the master, the transmission control device 1 is finally set with the vehicle number. Therefore, a vehicle number setting final response packet is transmitted.

  Next, in the state S16, it waits for reception of the vehicle number setting completion packet, and when it is received (recv comp), the state transitions to the state S2 (see FIG. 7). After the transition to S2, the setting operation as a slave is completed, and the subsequent steady state operation is performed. If an initialization request packet is received in state S16, the flow goes to state S5. If the vehicle setting complete packet is not received for 60 seconds after the transition to the state S16, the state transitions to the state S5 (Timeout).

  In addition, in the states S4 to S16, when the other connection (H3 or H2) of the communication units is detected before each process (Linkup), the state transitions to the state S18 (see FIG. 9). Further, when the connection of the connected communication unit (H2 or H3) is not detected (Linkdown), the state transitions to the state S1 (see FIG. 7).

  In state S18 shown in FIG. 9, an initialization request packet is transmitted (send init), and the state transitions to state S19.

  Next, in the state S19, since the connection is detected to both of the two communication units (H2, H3) at the time of transition to the state S18, the transmission control device 1 is not located at the end of the vehicle formation. It judges, relays the end point notification packet transmitted from the transmission control device 1 located at the end, and transits to the state S20. If the vehicle number setting request packet is not received for 10 seconds after the transition to the state S19, the state transitions to the state S18 (Timeout).

  Next, in state S20, it waits for the reception of a vehicle number setting start packet as a slave, and when it is received (recv start), it transits to state S21. If an initialization request packet is received in state S20, the flow goes to state S19. If the vehicle number setting start packet is not received for 5 seconds after the transition to the state S20, the state transitions to the state S18 (Timeout).

  Next, in state S21, the transmission function of the communication unit is stopped (Tx port close), and the state transitions to state S22.

  Next, in the state S22, it waits for reception of the vehicle number setting request packet, and when it is received (recv req), as shown in (8) of FIG. 5 described above, sets its own IP address and vehicle number. And it changes to state S23. If an initialization request packet is received in state S22, the flow goes to state S19. If the vehicle number setting request packet is not received for 60 seconds after the transition to the state S22, the state transitions to the state S18 (Timeout).

  Next, in state S23, the transmission function of the communication unit is restored (Tx port open), and the state transitions to state S24.

  Next, in state S24, a vehicle number setting response packet is transmitted (send resp), and the state transitions to state S25.

  Next, in the state S25, it waits for reception of a vehicle number setting completion packet, and when it receives (recv comp), it changes to state S17 (refer FIG. 7). In addition, when a vehicle number setting completion packet is not received for 60 seconds after changing to state S25, it changes to state S18 (Timeout).

  In the states S18 to S25, when any one of the connected communication units (H2 or H3) is not detected (Linkdown), the state transits to the state S4 (see FIG. 8).

  In the state S2, when the initialization request packet is received, the state transitions to the state S5 (see FIG. 8). In addition, when the other connection (H3 or H2) of the communication unit is detected (Linkup), the state transitions to state S18 (see FIG. 9). Further, when the connection of the connected communication unit (H2 or H3) is not detected (Linkdown), the state transits to state S1.

  In the state S3, when the initialization request packet is received, the state transitions to the state S5 (see FIG. 8). In addition, when the other connection (H3 or H2) of the communication unit is detected (Linkup), the state transitions to state S18 (see FIG. 9). Further, when the connection of the connected communication unit (H2 or H3) is not detected (Linkdown), the state transits to state S1.

  In the state S17, when the initialization request packet is received, the state transitions to the state S18 (see FIG. 9). In addition, when any one of the connected communication units (H2 or H3) is not detected (Linkdown), the state transits to the state S4 (see FIG. 8).

  In the state transition diagram described above, times such as timeout and waiting time and the number of times the same packet is transmitted are examples, and are not limited to the values described.

  According to the present embodiment, the transmission control device 1M serving as a master can take the lead in controlling the setting of the IP address and vehicle number of the transmission control device 1S serving as a slave. In addition, by stopping the transmission function of the communication units (H2, H3) of the transmission control device 1S other than the master transmission control device 1M and restoring the transmission function after setting the IP address and vehicle number, Even if the transmission control device 1M to be described does not clearly indicate the transmission control device 1S for setting the IP address and the car number, the IP address and the car number are sequentially assigned from the transmission control device 1S adjacent to the master transmission control device 1M. Can be set. Therefore, it is possible to improve the efficiency of the identification information setting operation of each transmission control device 1. Adjacent confirmation lines are no longer required and the number of outfitting lines is reduced, thus reducing the weight.

  Further, it is determined whether only one of the communication units H2 and H3 is connected to the other transmission control device to determine whether it is at the end of the vehicle formation. In addition, it can be determined which side of the end portion is located from the end code indicating the first and second positions. Also, the unique vehicle number is compared to determine the size, and one of the two ends is selected as the master. That is, it is possible to clearly determine which of the two transmission control devices 1 placed at the end of the vehicle formation is the master transmission control device 1M.

  Further, the relay function is restored in order from the transmission control device 1S in which the setting of the IP address and the car number is completed, and the transmission control device 1M that has become the master in the transmission control device 1S in which the IP address and the car number are not set. The transmitted vehicle number setting request packet can be transmitted. Therefore, the setting work in all the transmission control devices 1 in the vehicle organization is performed without omission.

  Moreover, since the transmission control apparatus 1 used as a master is either one of the both ends of a vehicle organization, an IP address and a vehicle number can be set sequentially from the end. Further, if the setting is completed up to the transmission control device 1 placed at the other end, it can be easily known that all the settings are completed.

  Further, when the transmission control devices 1 at both ends of the vehicle formation notify each other as end point notification packets, the transmission control device 1 at the end portion becomes the master. It can be easily determined whether to do.

  Moreover, the stop timing of the transmission function of the communication units H2 and H3 can be specified by the vehicle number setting start packet.

  Further, the transmission control device 1M as the master can know that the setting of the IP address and the vehicle number has been completed by the vehicle number setting response packet. Accordingly, the master transmission control device 1M can perform the setting operation of the IP address and vehicle number of the next transmission control device 1S.

  Further, the transmission control device as a master can know that the setting of the IP addresses and vehicle number of all the transmission control devices 1 is completed by receiving the vehicle number setting final response packet. Therefore, the normal operation can be performed thereafter.

  Further, when the transmission control device 1 cannot operate normally, a bypass relay that connects the communication unit H2 and the communication unit H3 is provided, so that the transmission control system 100 can be prevented from being down due to a failure of the transmission control device 1.

(Second Embodiment)
Next, a transmission control device and a transmission control system according to the second embodiment of the present invention will be described with reference to FIGS. Note that the same parts as those in the first embodiment described above are denoted by the same reference numerals and description thereof is omitted.

  In the present embodiment, two transmission control devices 1 (transmission control device A1a and transmission control device B1b) are mounted on one vehicle. That is, the transmission control system 101 is composed of the two transmission control devices 1. In addition, in this embodiment, it is an example in case one formation has only one car. The basic operation is the same as in the first embodiment. The state (0) in FIG. 10 is an initial state, and the two transmission control devices installed inside the outer frame showing the vehicle are connected to each other. The first place is described at the upper left of the frame in the figure and the second place is shown at the upper right, which is an end code for distinguishing the end of the vehicle and indicates the attribute of the communication section. The transmission control device A (1a) on the left side of the figure is located in the first place, and the transmission control device B (1b) on the right side is located in the second place.

  In the initial state, the transmission control device A (1a) and the transmission control device B (1b) are set to the composition number 1 and the car number number = 0. Further, a unique vehicle number = 0000 is assigned to the vehicle. The IP addresses of the transmission control device A (1a) and the transmission control device B (1b) are all 10.0.64.254, and the addresses of the ports (communication unit H1) connected to the router 3 (not shown) are all 192. It is 168.0.254.

  Next, in state (1), since the communication unit (H2 or H3) of the transmission control device A (1a) is connected, the communication unit (H3 or H2) of the transmission control device B (1b) is detected and physically The transmission control device A (1a) and the transmission control device B (1b) are in the slave state. When recognizing the existence of the adjacent transmission control device 1, the transmission control device A (1a) and the transmission control device B (1b) are appropriately set to avoid an unstable state immediately after connection, for example, after a waiting time of about 1 second has elapsed. An initialization request packet is transmitted by broadcasting to start setting work. An initialization request packet A is transmitted from the transmission control device A (1a), and an initialization request packet B is transmitted from the transmission control device B (1b) to reach all the transmission control devices 1 other than itself.

  In the state (2), the transmission control device A (1a) and the transmission control device B (1b) receive the initialization request packet and set their own IP addresses to 0.0.0.0. In addition, the car number indicating the order in the vehicle organization is undecided, so the car number =? It expresses.

  Next, setting work will be described. In the state (3), the transmission control device A (1a) and the transmission control device B (1b) having the communication unit located at the end of the vehicle formation have communication units that do not recognize the other transmission control devices 1, so that the vehicle formation You can see that it is at the end of Therefore, the transmission control device A (1a) and the transmission control device B (1b) stop the transmission / reception function of the communication unit that does not recognize the other transmission control devices 1, and transmit the end point notification packet C and the end point notification packet D respectively by broadcast. . This end point notification packet includes an end code indicating each vehicle number and position information (first or second place) where a communication unit that does not recognize another transmission control device 1 is placed.

  In the state (4) of FIG. 11, the transmission control device A (1a) having the communication unit placed at the left end of the vehicle is the end point notification packet D from the transmission control device B (1b) having the communication unit placed at the right end. Receive. The transmission control device B (1b) placed at the right end receives the end point notification packet C from the transmission control device A (1a) placed at the left end.

  The transmission control device A (1a) that has received the end point notification packet D reads the vehicle number (0000) in the end point notification packet D. This is compared with the vehicle number (0000) of the own vehicle on which it is placed. If the two are compared, the vehicle numbers are equal and the superiority or inferiority is not determined. In the case where it is determined in advance that the smaller value is dominant and becomes the master, the transmission control device A (1a) located at the first place becomes dominant, and the transmission control device A (1a) becomes the master transmission control device 1M and becomes the master transmission. The control apparatus 1M sets its own IP address to 10.0.64.254 set in advance. This is the main difference from the first embodiment.

  In addition, the transmission control device B (1b) having the communication unit located at the second position of the vehicle remains as a slave (slave transmission control device 1S), and the transmission control device A (1a) becomes the master transmission control device 1M. Wait for the command.

  Next, in the state (5), the master transmission control device 1M sets the vehicle number of the vehicle on which it is placed to 0, and transmits a vehicle number setting start packet E by broadcast. The slave transmission control device 1S receives this packet E.

  In the state (6), the slave transmission control device 1S that has received the vehicle number setting start packet E stops the transmission function of the communication units (H2, H3).

  In the state (7), the master transmission control device 1M waits for a time (for example, 500 ms) until the slave transmission control device 1S stops the transmission function of the communication unit, and then the IP address 10 corresponding to the preset vehicle ID. .0.64.254, a vehicle number setting request packet F including the vehicle number (0000) of the vehicle on which it is placed and the vehicle number 0 set to itself is broadcasted. Since transmission is performed by broadcast, all slave transmission control devices 1S can receive the data. However, since the transmission function of the communication unit is stopped in the state (6), slave transmission directly connected to the master transmission control device 1M is performed. The vehicle number setting request packet is not transmitted downstream from the control device 1S.

  The slave transmission control device 1S that has received the vehicle number setting request packet F transmitted from the master control device 1M has the same vehicle number, so a predetermined number (here, the lower 2 bytes of the IP address having received its own IP address). -10) is added and set to 10.0.64 · 244.

  In the state (8) of FIG. 12, the transmission control device B (1b) having a communication unit with no communication partner located at the second position on the right end sends the vehicle to the master transmission control device 1M when all the settings are completed in its own device. The number setting final response packet G is transmitted. In addition, the transmission function of the communication unit is restored.

  In the state (9), the master transmission control device 1M receives the vehicle number setting final response packet G, transmits the vehicle number setting completion packet H by broadcast, and recovers the transmission / reception function of the communication unit that has been stopped. This completes the setting work of the master transmission control device 1M.

  The slave transmission control device 1S that has received the vehicle number setting completion packet H recovers the transmission / reception function of the communication unit that has stopped the transmission / reception function, and ends the setting operation.

  According to the present embodiment, the transmission control device 1 serving as a master can be determined even when the transmission control device 1 is placed at both ends of one vehicle and in the case of a one-car train. In addition, the setting of the IP address and the car number can basically be performed by the same operation as when a plurality of vehicles are connected.

(Third embodiment)
Next, a transmission control device and a transmission control system according to the third embodiment of the present invention will be described with reference to FIGS. The same parts as those in the first and second embodiments described above are denoted by the same reference numerals and description thereof is omitted.

  In the present embodiment, setting work when two vehicles are connected in a state where two transmission control devices 1 (transmission control device A (1a) and transmission control device B (1b)) are mounted on one vehicle will be described. To do. That is, the transmission control system 102 is configured by the four transmission control devices 1. The basic operation is the same as in the first embodiment. In the state (0) to the state (2) in FIG. 13, two transmission control devices 1 are placed in a frame surrounded by an outer frame indicating the vehicle. The state (0) indicates an initial state, the vehicles are not connected to each other, and the communication units of the transmission control device 1 between the vehicles are not connected to each other.

  In the initial state, each transmission control device is set to organization number 1 and vehicle number 0. Further, each vehicle is given a unique vehicle number, and the vehicle number of the vehicle A = 0000 and the vehicle number of the vehicle B = 3210. The IP address of the transmission control apparatus is 10.0.64.254 for the transmission control apparatus A (1a) on the left side in the figure, and 10.0.64.44 for the transmission control apparatus B (1b) on the right side in the figure. The addresses of the ports (communication unit H1) connected to the router 3 (not shown) are all 192.168.0.254.

  Here, what is described as first place in the upper left of the frame and second place in the upper right is an end code for distinguishing the end of the vehicle. Further, the leftmost vehicle in the figure is a vehicle A in which the first place is unconnected, and the rightmost vehicle is a vehicle C in which the second place is unconnected.

  Next, in the state (1), when the vehicles are coupled, the communication unit of the transmission control device 1 between the vehicles is connected and becomes physically communicable, and all the transmission control devices 1 are in the slave state. The vehicle transmission control device B (1b) and the vehicle transmission control device A (1a) that recognize the existence of the adjacent transmission control device 1 are appropriately set to avoid an unstable state immediately after connection, for example, 1 second. An initialization request packet is transmitted by broadcast after a certain waiting time has elapsed. An initialization request packet A is transmitted from the transmission control device B (1b) of the vehicle A, and an initialization request packet B is transmitted from the transmission control device A (1a) of the vehicle B. These initialization request packets are all other than themselves. The transmission control device 1 is reached.

  In the state (2), when the transmission control device 1 receives the initialization request packet from the other transmission control device 1, it sets its own IP address to 0.0.0.0. At this time, the car number indicating the order in the vehicle organization is undecided. It expresses.

  Next, setting work will be described with reference to FIG. In the state (3), the vehicle A transmission control device A (1a) and the vehicle C transmission control device B (1b) located at the end of the vehicle formation do not recognize other transmission control devices (H2 or H3). It can be seen that it is at the end of the vehicle formation. Therefore, these transmission control devices 1 stop the transmission / reception function of the communication unit that does not recognize the other transmission control devices 1, and transmit the end point notification packets C and D by broadcast. In this end point notification packet, the vehicle number of the vehicle in which each transmission control device is placed and the end code which is the position information (first or second place) where the communication unit that does not recognize the other transmission control device 1 is placed. included.

  In the state (4), the transmission control device A (1a) placed on the leftmost vehicle A receives the end point notification packet D from the transmission control device B (1b) placed on the rightmost vehicle b. The transmission control device B (1b) placed on the rightmost vehicle B receives the end point notification packet C from the transmission control device A (1a) placed on the leftmost vehicle A.

  The transmission control device A (1a) placed in the vehicle A that has received the end point notification packet D reads the vehicle number (3210) in the end point notification packet D. It determines whether it becomes a master by setting this as the vehicle number (0000) of the vehicle (a) in which it is placed. When it is determined in advance that the smaller value is dominant and becomes the master, the transmission control device placed in the vehicle A becomes dominant and the transmission control device 1 placed in the vehicle A becomes the master transmission control device 1M. The master transmission control device 1M sets its own IP address to 10.0.64.254 set in advance.

  The same processing is also performed in the vehicle B, and the vehicle control transmission device B (1b) having the vehicle number (3210) remains the slave (slave transmission control device 1S), and the master transmission control device 1M Wait for the command.

  Next, in the state (5), the master transmission control device 1M sets the vehicle number of the vehicle on which it is placed to 0, and transmits a vehicle number setting start packet E by broadcast. The other slave transmission control device 1S receives this vehicle number setting start packet E.

  In the state (6) of FIG. 15, the slave transmission control device 1S that has received the vehicle number setting start packet E stops the transmission function of the respective communication units (H2, H3).

  In the state (7), the master transmission control device 1M waits for a time (for example, 500 ms) until the slave transmission control device 1S stops the transmission function of the communication unit, and then the IP address 10 corresponding to the preset vehicle ID. .0.64.254, a vehicle number setting request packet F including the vehicle number (0000) of the vehicle on which it is placed and the vehicle number 0 set to itself is broadcasted. Since the transmission is performed by broadcast, it can be received by all the slave transmission control devices 1S, but since the transmission function of the communication unit is stopped in the state (6), it is directly connected to the master transmission control device 1M of the vehicle A. The vehicle number setting request packet F is not transmitted downstream from the slave transmission control device 1S (transmission control device B (1b)).

  The slave transmission control device 1S of the vehicle A that has received the vehicle number setting request packet F transmitted from the master control device 1M has the same vehicle number (0000) included in the vehicle number setting request packet F as its own vehicle number. A predetermined number (−10 in this case) is added to the lower 2 bytes of the IP address, and the IP address is set to 10.0.64.44.

  In the state (8), the slave transmission control device 1S of the vehicle A restores the transmission function of the communication unit that has been stopped, and when all the settings in the own device are completed, the set IP address 10.0.64.424 The vehicle number setting response packet G including the set vehicle number 0000 and the set vehicle number 0 is transmitted to the master transmission control device 1M.

  In the state (9) of FIG. 16, the master transmission control device 1M that has received the vehicle number setting response packet from the slave transmission control device 1S continues to the slave transmission control device 1S (vehicle transmission control device B (1b)). ), A vehicle number setting request packet H including the IP address set to 10.0.64.44, the vehicle number (0000), and the vehicle number 0 is transmitted by broadcast.

  The transmission control device B (1b) of the vehicle A ignores the vehicle number setting request packet H because its own setting has already been completed. Further, since the transmission function of the communication unit of the vehicle A transmission control device B (1b) has been restored, the vehicle number setting request packet H from the master transmission control device 1M is transmitted to the slave transmission control device 1S (transmission control device A) of the vehicle B. (1a)).

  In the state (10), the slave transmission control device 1S of the vehicle B receives the vehicle number setting request packet H for the first time, and compares the vehicle numbers included therein. Since the sent vehicle number is different from the own vehicle number, the IP address included in the vehicle number setting request packet H is set to a predetermined value (here, 10 in the lower 1 byte, 2 lower bytes) Add 1) to the eye to make 10.0.65.554. Further, 1 is added to the car number 0 included in the sent car number setting request packet H to set its own car number to 1. When all the settings in the own device are completed, the transmission function of the communication unit is restored, and the IP address 10.0.65.254, vehicle number (3210), vehicle number number set in the master transmission control device 1M 1 is transmitted, and the master transmission control apparatus 1M receives the vehicle number setting response packet I.

  In the state (11), the master transmission control device 1M that has received the vehicle number setting response packet I from the slave transmission control device (transmission control device A (1a)) of the vehicle B continues to the vehicle number setting response packet I. A set vehicle address setting request packet J including the set IP address 10.0.65.254, the vehicle number (3210), and the vehicle number 1 is broadcasted to the transmission control device A (1a) of the vehicle B included. .

  Since the transmission control device A (1a) in the vehicle has already been set, the vehicle number setting request packet J is transferred to the transmission control device B (1b). The transmission control device B (1b) of the vehicle B compares the vehicle number in the packet J with the vehicle number of the vehicle on which it is placed. A predetermined number (in this case, -1) is added to the lowest 2 bytes to obtain 10.0.65.244.

  In the state (12) of FIG. 17, since the transmission control device B (1b) of the vehicle B has a communication unit placed at the end, the set IP address 10.0.65.244, vehicle number 3210, vehicle number A vehicle number setting final response packet K including the number 1 is transmitted to the master transmission control device 1M.

  In the state (13), the master transmission control device 1M that has received the vehicle number setting final response packet K transmits a vehicle number setting completion packet L by broadcast. In addition, the transmission / reception function of the communication unit that has been stopped is restored, and the setting operation is completed.

  The slave transmission control device 1S that has received the vehicle number setting completion packet L ends the vehicle number setting. Further, the communication unit of the transmission control device B (1b) located at the end of the vehicle b restores its transmission / reception function.

  According to the present embodiment, even when the transmission control device 1 is placed at both ends of one vehicle and in the case of multi-vehicle formation, the transmission control device 1 to be a master is determined, and the IP Address and car number can be set.

  The present invention is not limited to the above embodiment. That is, those skilled in the art can implement various modifications in accordance with conventionally known knowledge without departing from the scope of the present invention. Of course, such modifications are included in the scope of the present invention as long as the transmission control system and the transmission control apparatus of the present invention are configured.

1 Transmission control device 2 Switching hub (determination unit, communication control unit)
3 routers (determination unit, communication control unit)
4 Bypass relay (bypass means)
100, 101, 102 Transmission control system

Claims (10)

A transmission control device having at least two communication units and one or more transmission control devices installed in each of a plurality of vehicles are connected in cascade through the communication units, and the transmission control device and a vehicle in which the transmission control device is placed A transmission control system in which identification information for identifying the arrangement order is sequentially set in each of the plurality of transmission control devices,
Among the plurality of transmission control devices, determine a transmission control device to be a master according to the connection state with the other transmission control devices and predetermined conditions,
The transmission control device other than the master transmission control device stops the transmission function of the communication unit,
The transmission control device serving as the master sequentially sets the identification information from the transmission control device adjacent to the master,
The transmission control device in which the identification information is set restores the transmission function of the communication unit.
A transmission control system characterized by that.   As the predetermined condition, a transmission control device serving as the master is based on one of an end code indicating which of the two ends of the vehicle is placed and a vehicle number which is a unique number of the vehicle. The transmission control system according to claim 1, wherein the transmission control system is determined.   The transmission control device in which the identification information is set, after restoring the transmission function of the communication unit, relays the information for setting the identification information transmitted from the transmission control device as the master, The transmission control system according to claim 1, wherein transmission is performed to the adjacent transmission control device. A first communication unit and a second communication unit that transmit and receive signals to and from other different transmission control devices, each having a unique vehicle number, and the vehicle on which the vehicle itself is placed based on the vehicle number A transmission control device installed in a vehicle in which identification information for identifying the arrangement order is set,
At least one of the vehicle number of the vehicle on which the vehicle is placed and an end code indicating which of the vehicle is placed at both ends of the vehicle, and the vehicle number of the vehicle on which another transmission control device is placed And a determination unit that determines whether or not to be a master based on at least one of the end codes indicating which of the both ends of the vehicle is placed, and
When the determination result of the determination unit is the master, after setting the identification information of itself, the setting request information of the identification information is transmitted to the other transmission control device, and is not determined as the master. In the case, after stopping the transmission function of the first and second communication units, receiving the setting request information of the identification information, and setting the identification information of itself based on the setting request information of the identification information A communication control unit for recovering the transmission function of the first and second communication units;
A transmission control apparatus comprising:   The determination unit determines that the master communication unit is not set as the master when there is no communication unit that is not detected to be connected to another transmission control device among the first communication unit and the second communication unit. The transmission control device according to claim 4.   The communication control unit, when there is the communication unit that is not detected connection with the other transmission control device, there is the communication unit that is not detected connection with the other transmission control device, and the vehicle number 6. The transmission control device according to claim 4 or 5, wherein endpoint notification information including the end code indicating the end portion on which the communication unit is detected is transmitted to another transmission control device. .   If the communication control unit is determined to be the master, after setting the identification information of itself, after transmitting identification information setting start information, setting request information of the identification information to the other transmission control device And when the identification information setting start information is received, the transmission functions of the first and second communication units are stopped when the identification information setting start information is received. The transmission control device according to any one of claims.   When the communication control unit is not determined to be the master, the communication control unit transmits response information indicating completion of the identification information setting to the master after restoring the transmission functions of the first and second communication units. The transmission control device according to claim 4, wherein the transmission control device is a device.   When the communication control unit is not determined as the master and there is a communication unit in which connection with another transmission control device is not detected among the first communication unit and the second communication unit, 9. The transmission control apparatus according to claim 8, wherein response information is transmitted to the master as final response information indicating that the setting of the identification information of all the transmission control apparatuses is completed.   The transmission control device according to any one of claims 4 to 9, further comprising bypass means for transmitting information by directly connecting the first communication unit and the second communication unit.

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