Abstract: An anomaly detection server is provided. The anomaly detection server is a server for counteracting an anomalous frame transmitted on an on-board network of a single vehicle. The anomaly detection server acquires information about multiple frames received on one or multiple on-board networks of one or multiple vehicles, including the single vehicle. The anomaly detection server, acting as an assessment unit that, based on the information about the multiple frames and information about a frame received on the on-board network of the single vehicle after the acquisition of the information about the multiple frames, assesses an anomaly level of the frame received on the on-board network of the single vehicle.

Abstract: A transmission side transmission device includes a first transmitter including a first switch and a second transmitter including a second switch. When the first transmitter detects a fault in the first main signal, the second transmitter outputs a duplicated signal of the second main signal to the first transmitter. The first selector of the first transmitter selects and outputs a duplicated signal of the input second main signal. When the second transmitter detects a fault in the first switch, the second transmitter selects and outputs the second main signal.

Abstract: In the optical transmission system (1), a variable ATT (40) is used to attenuate both a data optical signal (L1) and an OSC optical signal (27) passing through a section according to an ATT value. A monitoring control server (50) includes an input unit (51) for receiving an input of information for specifying a monitoring section in the optical transmission system (1), an information collection unit (52) for collecting information for calculating an ATT value from a transmission device (20) and the variable ATT (40) existing in the monitoring section, and a change trial unit (54) for executing first determination processing for determining whether both of the optical signals can be transmitted, in accordance with whether or not power at the time of receiving the both optical signals passing through the monitoring section falls within a prescribed range, based on the information collected by the information collection unit (52).

Abstract: An optical path route design device (20A) includes a transmission/reception route selection unit (20), a candidate selection unit (21), an existence judgement unit (22), a maximum resource 3R selection unit (23), and a new 3R selection unit (24). The design device (20A) selects relay stations in which two transmission/reception end points are arranged, selects a route pair of an active system-0 route and a standby system-1 route, which connects the transmission/reception end points with each other and does not overlap each other, and a backup third route detouring from the route pair via one or more relay stations, and arranges a resource amount of predetermined wavelengths in a shared 3R which is on the third route and shared by a plurality of route pairs.

Abstract: An on-board relay apparatus includes: a relaying unit configured to relay information between a plurality of on-board apparatuses belonging to mutually different virtual local area networks (VLANs); a detecting unit configured to detect that the on-board apparatuses have transitioned to a sleep state; and a notifying unit configured to, if it is detected by the detecting unit that a first on-board apparatus among the plurality of on-board apparatuses has transitioned to the sleep state, provide a second on-board apparatus among the plurality of on-board apparatuses with a sleep notification indicating that the first on-board apparatus has transitioned to the sleep state.

Abstract: A switch device includes: a plurality of communication ports; a switch unit configured to relay a frame, which has been transmitted from a function unit and to which information including an ID of a VLAN and priority information is added, to another function unit via a communication port, according to the priority information; and a duplication unit configured to, when the diagnosis device is connected to another switch device, duplicate the frame to be relayed via a designated communication port, thereby generating a duplicate frame for diagnosis. The duplication unit is able to set the priority information to be added to the duplicate frame for diagnosis, separately from the priority information to be added to the frame as an original. The switch unit outputs the duplicate frame for diagnosis, from a communication port corresponding to the other switch device, according to the priority information set by the duplication unit.

Abstract: The in-vehicle management device includes: a detection unit configured to detect the presence of a target device that is an in-vehicle device that does not support a predetermined message among in-vehicle devices included in an in-vehicle network; and a control unit configured to perform control for causing the target device detected by the detection unit to transition to a sleep state when a state where the predetermined message from the in-vehicle devices does not arrive at the in-vehicle management device has continued for a predetermined period.

Abstract: An inter-transmission device connection registration device 30A includes a storage unit 31 that registers connection information of a case where transponders 12a to 13n and photo couplers 14a to 14n as divided various transmission devices are connected through a port o and a port i, a light emission instruction unit 33 that provides a light emission instruction to the subordinately connected transponders, a transmission/reception detection unit 34 configured to detect a light transmission and a light reception at opposing ports o and i1 between transmission devices, e.g., the transponder 12a and the photo coupler 14 in accordance with the light emission instruction, and a registration control unit 35 that performs a control of registering, in the storage unit 31, connection information W2a of the port o on a light transmission side and the port i1 on a light reception side that are detected.

Abstract: A switch device includes a plurality of communication ports; a switch unit configured to relay a frame, which has been transmitted from a function unit and to which information including an ID of a VLAN is added, to another function unit via a communication port; and a duplication unit configured to, when the diagnosis device is connected to another switch device, duplicate the frame to be relayed via a designated communication port among the plurality of communication ports, and generate a duplicate frame for diagnosis that is a frame obtained by adding, to a duplicate frame obtained through the duplication, specific information indicating that the duplicate frame for diagnosis should be transmitted to the diagnosis device. The switch unit outputs the duplicate frame for diagnosis generated by the duplication unit from a communication port corresponding to the other switch device.

Abstract: The network device information management apparatus includes: a log data acquisition unit configured to acquire log data from each of the plurality of devices, the log data including information about components of the plurality of devices; and an inventory information estimation unit configured to exclude a common portion of the log data before and after registration of the component to extract a component configuration indicating information about the component newly registered to the device, compare the extracted component configuration with the component configuration extracted from a component registered to another device, estimate the common portion as inventory information, and store the estimated inventory information in storage means.

Abstract: To easily design a communication path topology optimized in view of reducing the amount of equipment needed under the condition that availability against multiple failures in a network is maintained. A transmission path design apparatus (100) performs: a step (S14) of extracting, from the multiple base stations, a first group of base stations whose number of communication-path routes connected is large, based on transmission network model initial data (D0); a step (S16) of extracting a first group of communication paths connecting the base stations in the first group; a step (S16) of calculating a both-end path value (d_i,j) for each communication path in the first group; and steps (S18 to S24) of determining the communication path whose both-end path value satisfies a predetermined condition as a thinning-out target communication path, and generating output data Dy in which the thinning-out target communication path is reflected on the transmission network model initial data.

Abstract: A monitoring control unit (22) of an OXC (20d) stores a management table (22a) in which pieces of information regarding a modulation mode, an FEC, and a frame mode of an optical signal are associated with each other, and sequentially changes the modulation mode, the FEC, and the frame mode according to the management table (22a) upon an LOS alert from a relay-side optical input/output unit (24) or an LOF alert from a DSP (25) being input thereto. Upon successfully receiving an appropriate optical signal according to the change, the monitoring control unit (22) acquires transmission source information included in the optical signal, and detects an occurrence of erroneous connection of an optical transmission line in an OXC (20g), which serves as a relay apparatus, when the acquired transmission source information indicates an optical cross-connect apparatus that is a transmission source different from an original transmission source.

Abstract: A transmission side transmission device (40) includes a first transmitter (20) including a first switch (21) and a second transmitter (30) including a second switch (31). When the first transmitter (20) detects a fault in the first main signal, the second transmitter (30) outputs a duplicated signal of the second main signal to the first transmitter (20). The first selector (22) of the first transmitter (20) selects and outputs a duplicated signal of the input second main signal. When the second transmitter (30) detects a fault in the first switch (21), the second transmitter (30) selects and outputs the second main signal.

Abstract: A transmission device (10) includes a flow table (11) that stores identification information about an uninterruptible target flow; a transmission-side identification unit (12) that identifies whether a received packet is from the target flow or a non-target flow based on whether the received packet matches the identification information about the target flow stored in the flow table (11); a tag application unit (13) that applies, to packets from the target flow, an uninterruptible identifier indicating that the packets are from the target flow and a sequence number for distinguishing the packets from other packets; and a branch unit (14) that branches the packets from the target flow processed by the tag application unit (13) into packets to be transferred to an active path (41) among redundant routes and packets to be transferred to a backup path (42) among the redundant routes.

Abstract: Provided is an optical transmission system that includes: a transponder having a transmitter and a receiver; a loopback path that directly couples a signal of the transmitter to the receiver; and a server that calculates, based on a signal transmitted using the loopback path, a compensation value to compensate for frequency characteristics of a signal transmitted from the transmitter.

Abstract: A ramp system for a vehicle includes a control device. Using an obstacle detection device, the control device determines whether an obstacle exists within a ramp extension area. Upon determining that an obstacle exists within the ramp extension area, the control device causes a vehicle to move to a location in which no obstacle exists within the ramp extension area.

Abstract: A plurality of communication units of an on-board relay device include a remote communication unit to which a communication device outside a vehicle for communicating with an external server is connected, and a local communication unit to which a diagnostic device is connected, and a control unit of the on-board relay device performs lower layer side control for relay based on a lower side layered protocol in communication, and upper layer side control for relay based on an upper side layered protocol rather than the lower side layered protocol, and performs adjustment processing with respect to a conflict of a plurality of maintenance processings by the upper layer side control when information relevant to the plurality of maintenance processings with respect to any one on-board ECU of a plurality of on-board ECUs is input through the local communication unit and the remote communication unit.

Abstract: A switch device includes: a plurality of communication ports; a switch unit configured to relay a frame, which has been transmitted from a function unit and to which information including an ID of a VLAN and priority information is added, to another function unit via a communication port, according to the priority information; and a duplication unit configured to, when the diagnosis device is connected to another switch device, duplicate the frame to be relayed via a designated communication port, thereby generating a duplicate frame for diagnosis. The duplication unit is able to set the priority information to be added to the duplicate frame for diagnosis, separately from the priority information to be added to the frame as an original. The switch unit outputs the duplicate frame for diagnosis, from a communication port corresponding to the other switch device, according to the priority information set by the duplication unit.

Abstract: A switch device includes a plurality of communication ports; a switch unit configured to relay a frame, which has been transmitted from a function unit and to which information including an ID of a VLAN is added, to another function unit via a communication port; and a duplication unit configured to, when the diagnosis device is connected to another switch device, duplicate the frame to be relayed via a designated communication port among the plurality of communication ports, and generate a duplicate frame for diagnosis that is a frame obtained by adding, to a duplicate frame obtained through the duplication, specific information indicating that the duplicate frame for diagnosis should be transmitted to the diagnosis device. The switch unit outputs the duplicate frame for diagnosis generated by the duplication unit from a communication port corresponding to the other switch device.

Abstract: A switch device for relaying flow data in an in-vehicle network, being equipped with an acquiring section for acquiring correspondence information indicating at least a correspondence relationship among a transmission destination IP address, a transmission source IP address, transmission destination port information, transmission source port information and a transmission destination MAC address and a relay section for acquiring the transmission destination MAC address from the correspondence information on the basis of the transmission destination IP address, the transmission source IP address, the transmission destination port information and the transmission source port information included in a frame that is received by the switch device and constitutes the flow data and for performing transmission processing to transmit the frame including the acquired transmission destination MAC address.