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: Time synchronization is performed between the vehicle-mounted device and another device that is another vehicle-mounted device based on a data propagation delay time between the vehicle-mounted device and the other device. The vehicle-mounted device includes: a processing unit configured to receive, from the other device, request information that requests time information used for updating the propagation delay time, and transmit the time information to the other device; and a detection unit configured to detect an abnormality related to time synchronization, and acquire information regarding the detected abnormality.

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: An on-board network system includes: communication lines; a plurality of nodes, each of the nodes being directly and physically connected to at least one of the other nodes by the communication lines, the nodes including loop nodes physically connected to a loop by the communication lines, the nodes constituting a first logical network in which the nodes are connected with each other via one route through the communication lines; a communication disruption detecting unit configured to detect disruption of communications via the communication lines; a network reconstruction unit configured to reconstruct a second logical network when the disruption of communications is detected by the communication disruption detecting unit, the second logical network not including a communication line that causes the disruption; and a delivery unit configured to deliver the information of the second logical network to the nodes.

Abstract: An on-board network system includes: communication lines; a plurality of nodes, each of the nodes being directly and physically connected to at least one of the other nodes by the communication lines, the nodes including loop nodes physically connected to a loop by the communication lines, the nodes constituting a first logical network in which the nodes are connected with each other via one route through the communication lines; a communication disruption detecting unit configured to detect disruption of communications via the communication lines; a network reconstruction unit configured to reconstruct a second logical network when the disruption of communications is detected by the communication disruption detecting unit, the second logical network not including a communication line that causes the disruption; and a delivery unit configured to deliver the information of the second logical network to the nodes.

Abstract: An electrically-driven wheelchair is provided with a frame, drive wheels, an operator control panel and a support lever. The operator control panel controls action of the drive wheels. The lower side of the operator control panel is supported to the upper side of the support lever. The support lever is connected to the frame, and supports the operator control panel. The lower side of the support lever is connected to the frame so that the support lever can be rotated in the longitudinal direction and the lateral direction and can be adjustable. The upper side of the support lever is connected to the operator control panel so that the operator control panel can be rocked forward and rearward and leftward and rightward and can be movable. In the support structure of the operator control panel of the invention, not only the arrangement position of the operator control panel at the front and rear sides and the left and right sides but also the height of the operator control panel can be adjusted.

Abstract: In a wheelchair, a rear wheel part with a pair of rear wheels is assembled to the rear side of a frame in detachable state. The frame is constituted in foldable state. The rear wheel part and the rear side of the frame are provided with a locking member and a receiving member which can be coupled with each other and are arranged corresponding to these. The receiving member is provided with a concave locking surface at the side remote from the locking member. The locking member is provided with an insertion recess in which the receiving member can be inserted, and with a hook which can lock a locking surface of the receiving member inserted in the insertion recess. In the wheelchair, the rear wheel part can be simply assembled to or detached from the frame by the operation of the hook. Also the frame can be folded. Therefore even the wheelchair of heavy weight can be easily housed in a vehicle with a narrow housing space. Also the wheelchair can be simply assembled by the operation of the hook.